\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Torvak}
\pdfinfo{
  /Title (php.pdf)
  /Creator (Cheatography)
  /Author (Torvak)
  /Subject (php Cheat Sheet)
}

% Lengths and widths
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\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{453BA3}
\definecolor{LightBackground}{HTML}{F3F2F9}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{php Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Torvak} via \textcolor{DarkBackground}{\uline{cheatography.com/32041/cs/9809/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Torvak \\
  \uline{cheatography.com/torvak} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 4th December, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{2.33919 cm} x{2.63781 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Type managment functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`is\_array()`} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`is\_double(), is\_float(), is\_real()` & same function \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
`is\_long(), is\_int(), is\_integer()` & same function \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`is\_string()`} \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`is\_null()`} \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
`is\_scalar()` & if \$var is a whole number, a string or a double \tn 
% Row Count 10 (+ 3)
% Row 6
\SetRowColor{LightBackground}
`is\_numeric()` & is \$var. is a number or a numerical chain \tn 
% Row Count 12 (+ 2)
% Row 7
\SetRowColor{white}
`is\_callable()` & if \$var. is a valid function name \tn 
% Row Count 14 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.96811 cm} x{1.69349 cm} x{0.9154 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Data type conversion}}  \tn
% Row 0
\SetRowColor{LightBackground}
`int intval(var)` & \seqsplit{`intval('042')`} & Ret: 42 \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`float floatval(var)` & \seqsplit{`floatval('a1.2')`} & Ret: 1.2 \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
`string strval(var)` & `strval(1.2)` & Ret: '1.2' \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.89126 cm} x{3.08574 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Varible scope and constant definition}}  \tn
% Row 0
\SetRowColor{LightBackground}
`global myVar` & Will exists beyond its scope \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`define("X", 3);` & Ex: echo 'Value'.PI; \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{PHP variables need not be declared in advance before being used}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{0.84609 cm} x{4.13091 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{File system Modes}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{`r`}} & read-only from start (File pointer starts at the beginning of the file) \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
{\bf{`r+`}} & read-write from start \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{`w`}} & write-only (Erases the contents of the file or creates a new file if it doesn't exist. File pointer starts at the beginning of the file) \tn 
% Row Count 10 (+ 5)
% Row 3
\SetRowColor{white}
{\bf{`w+`}} & read-write (erases content from file and creates it if it desn't exist) \tn 
% Row Count 13 (+ 3)
% Row 4
\SetRowColor{LightBackground}
{\bf{`a`}} & append-only to EOF (existing data is preserved, creates new file if doesn't exist) \tn 
% Row Count 16 (+ 3)
% Row 5
\SetRowColor{white}
{\bf{`a+`}} & read-write - append to EOF \tn 
% Row Count 18 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{`x`}} & create new file for write only (ret. FALSE an ERROR if file already exists) \tn 
% Row Count 21 (+ 3)
% Row 7
\SetRowColor{white}
{\bf{`x+`}} & creates a new file for read/write  (ret. FALSE an ERROR if file already exists) \tn 
% Row Count 24 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{fseek() can only work in  mode {\bf{w+}} and NOT with {\bf{a}} or {\bf{a++}}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{0.9954 cm} x{3.9816 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Functions indicating the state of the variables}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{`isset()`} & if the var. exists \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{`unset()`} & removes the var. passed in parameter \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{`empty()`} & return true if var. is null \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Get variables from \$\_FILES}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`{[}'OBJ FILE NAME'{]}{[}'name'{]}`  -\textgreater{} gets name of file selected in a file {\bf{object}}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{`{[}'OBJ FILE NAME'{]}{[}'tmp\_name'{]}` -\textgreater{} gets temp name saved in server, waiting for destination transfer} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`{[}'OBJ FILE NAME'{]}{[}'size'{]}` -\textgreater{} gets the file's size in octets} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{`{[}'OBJ FILE NAME'{]}{[}'type'{]}` -\textgreater{} gets the MIME type of the file} \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`{\bf{// File example}} \{\{nl\}\}foreach(\$\_FILES as \$curImg =\textgreater{} \$photo)\{\{\{nl\}\}\$file = \$\_FILES{[}\$curImg{]}{[}"name"{]}; {\bf{{\emph{//img.jpeg}}}}\{\{nl\}\}\$tmpName = \$\_FILES{[}\$curImg{]}{[}"tmp\_name"{]}; {\bf{{\emph{//tmp/phps6L}}}}\{\{nl\}\}\$size = \seqsplit{filesize(\$tmpName)/1024;} {\bf{{\emph{//43}}}}\{\{nl\}\}\$ext = pathinfo(\$file, PATHINFO\_EXTENSION); {\bf{{\emph{//jpeg}}}}\{\{nl\}\}\$type = filetype(\$tmpName); {\bf{{\emph{//file}}}}\{\{nl\}\}\$mimeType = \$\_FILES{[}\$curImg{]}{[}"type"{]}; {\bf{{\emph{//image/jpeg}}}}\{\{nl\}\}\}\{\{nl\}\}move\_uploaded\_file(\$tmpName, "\$path\$file"))`\{\{nl\}\}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{String functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
`explode('sep', 'str')` & Ret. array without 'sep' \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`implode(glue, arr)`} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`strlen(str)` & Ret. length of string \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`substr(str, start, len)`} \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`strtolower(str)`} \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`strtoupper(str)`} \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`nl2br(str)`} \tn 
% Row Count 9 (+ 1)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`sprintf(frmt, args)`} \tn 
% Row Count 10 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`strip\_tags(str,allowed\_tags)`} \tn 
% Row Count 11 (+ 1)
% Row 9
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`strpos(str,needle)`} \tn 
% Row Count 12 (+ 1)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`strrev(str)`} \tn 
% Row Count 13 (+ 1)
% Row 11
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`strstr(str,needle)`} \tn 
% Row Count 14 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`{\bf{//Exemple of substr de \$adresse = 127.0.0.1}} \{\{nl\}\}\$class = substr(\$adresse, 0, 3) // {\bf{{\emph{=\textgreater{} 127}}}}\{\{nl\}\}\$class = substr(\$adresse, 3) // {\bf{{\emph{=\textgreater{} .0.0.1}}}}\{\{nl\}\}\$class = substr(\$adresse, -3); // {\bf{{\emph{=\textgreater{} 0.1}}}}\{\{nl\}\}\$class = substr(\$adresse, 0, -3); // {\bf{{\emph{=\textgreater{} 127.0.}}}}\{\{nl\}\}`}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.38896 cm} x{2.58804 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Code reusability}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{`require('script.php')`} & Stops script if {\bf{error}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{\seqsplit{`require\_once('script.ph')`}} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{`include('script.php')`} & Warning if {\bf{error}} \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{\seqsplit{`include\_once('script.php')`}} \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{\_once  -\textgreater{} makes sure that the code will be included or re-evaluated only once}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.64241 cm} x{3.33459 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{PHP Information}}  \tn
% Row 0
\SetRowColor{LightBackground}
`phpinfo()` & Version of PHP + infos \tn 
% Row Count 1 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Image generation}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`header('Content-type: image/jpeg')`} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{`\$img = ImageCreate(width, height)`} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`\$img = \seqsplit{ImageCreateTrueColor(width}, height)`} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{`\$img = ImageCreateFrom{[}PNG|JPEG|GIF{]}('imgname');` //create from existing image} \tn 
% Row Count 5 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\seqsplit{`ImageColorAllocate(\$img}, r,v,b) // rvb in 0 to 255`} \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{`Imagegammacorrect(\$img, int gamma\_in,int gamma\_out)`} \tn 
% Row Count 9 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`ImageFill(\$img, x start, y start, color)`} \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\seqsplit{`imagefilledrectangle(\$img}, \$x1, \$y1, \$x2, \$y2, \$color);`} \tn 
% Row Count 12 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`imagestring(\$img, \$font, \$x, \$y, \$string, \$color);`} \tn 
% Row Count 14 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`\textless{}?php\{\{nl\}\}header("Content-Type: image/png");\{\{nl\}\}\$im = imagecreate(110, 20);\{\{nl\}\}\$background\_color = imagecolorallocate(\$im, 0, 0, 0);\{\{nl\}\}\$text\_color = imagecolorallocate(\$im, 233, 14, 91);\{\{nl\}\}imagestring(\$im, 1, 5, 5,  "A Simple Text String", \$text\_color);\{\{nl\}\}imagepng(\$im);\{\{nl\}\}imagedestroy(\$im);\{\{nl\}\}?\textgreater{}`}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.58804 cm} x{2.38896 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Arrays}}  \tn
% Row 0
\SetRowColor{LightBackground}
`\$array{[}{]} = "a"` & No need to specifiy index \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`count(array)` & Nb. elements in array \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
`sizeof(array)` & Nb. elements in array \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{`array\_count\_value(array)`} & value=\textgreater{}freq \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`array\_diff(arr1,arr2)`} \tn 
% Row Count 9 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`array\_filter(arr,function)`} \tn 
% Row Count 10 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`array\_flip(arr)`} \tn 
% Row Count 11 (+ 1)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`array\_intersect(arr1,arr2)`} \tn 
% Row Count 12 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`array\_merge(arr1,arr2)`} \tn 
% Row Count 13 (+ 1)
% Row 9
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`array\_pop(\$arr)`} \tn 
% Row Count 14 (+ 1)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`array\_push(arr,var1, var2...)`} \tn 
% Row Count 15 (+ 1)
% Row 11
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`array\_reverse(arr)`} \tn 
% Row Count 16 (+ 1)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`array\_search(needle, arr)`} \tn 
% Row Count 17 (+ 1)
% Row 13
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`array\_walk(arr,function)`} \tn 
% Row Count 18 (+ 1)
% Row 14
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`in\_array(needle,haystack)`} \tn 
% Row Count 19 (+ 1)
% Row 15
\SetRowColor{white}
`sort(arr)` & smaller \textless{} bigger \tn 
% Row Count 20 (+ 1)
% Row 16
\SetRowColor{LightBackground}
`rsort(arr)` & bigger \textgreater{} smaller \tn 
% Row Count 21 (+ 1)
% Row 17
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`foreach (array\_expression as \$value)  \{\{nl\}\}   statement\{\{nl\}\} foreach (array\_expression as \$key =\textgreater{} \$value)   \{\{nl\}\}  statement`} \tn 
% Row Count 24 (+ 3)
% Row 18
\SetRowColor{LightBackground}
\seqsplit{`array\_slice(\$array}, 0, 3); & returns first 3 elements \tn 
% Row Count 26 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\bf{//Use of array\_slice()}} \newline `\$input = array("a", "b", "c", "d", "e");\{\{nl\}\}\$output = array\_slice(\$input, 2);`  {\emph{    // returns "c", "d", and "e"}}\{\{nl\}\} `\$output = array\_slice(\$input, -2, 1);` {\emph{// returns "d"}} \{\{nl\}\}`\$output = array\_slice(\$input, 0, 3);` {\emph{//returns "a", "b", and "c"}}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{PHP integrated arrays}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`\$\_GET`} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`\$\_POST`} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`\$\_FILES`} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`\$\_COOKIES`} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`\$\_SESSION`} \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`\$\_ENV`} \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`\$\_SERVER`} \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
`extract(arr,type, pref)` & get vals. from assoc. arr; \tn 
% Row Count 9 (+ 2)
% Row 8
\SetRowColor{LightBackground}
`EXTR\_OVERWRITE` & ow existing vars. \tn 
% Row Count 10 (+ 1)
% Row 9
\SetRowColor{white}
`EXTR\_SKIP` & won't ow existing vars \tn 
% Row Count 12 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`EXTR\_PREFIX\_ALL`} \tn 
% Row Count 13 (+ 1)
% Row 11
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`EXTR\_PREFIX\_INVALID`} \tn 
% Row Count 14 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{To get values easily from theses arrays, use function extract(). If we have: \newline \textgreater{} \$\_POST{[}'name'{]} \newline \textgreater{} \$\_POST{[}'surname'{]} \newline Using the function: extract(\$\_POST, EXTR\_OVERWRITE) will give us: \newline \textgreater{}\$name \newline \textgreater{}\$surname \newline -{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}- \newline \textgreater{}EXTR\_PREFIX\_ALL // create new vars. with the prefix spcified in 3rd param for all keys present in the array \newline \textgreater{}EXTR\_PRERFIX\_ALL // creates new vars. with prefix specified in 3rd param only for invalid exsting variable names such as \$1}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.04057 cm} x{2.93643 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Environnement variables from \$\_SERVER}}  \tn
% Row 0
\SetRowColor{LightBackground}
`PHP\_SELF` & path to curr. script \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`SERVER\_NAME` & Ex: Localhost \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`DOCUMENT\_ROOT` & root of curr.script \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`REMOTE\_ADDR` & IP requesting curr. page \tn 
% Row Count 5 (+ 2)
% Row 4
\SetRowColor{LightBackground}
`REMOTE\_PORT` & client port -\textgreater{} server \tn 
% Row Count 6 (+ 1)
% Row 5
\SetRowColor{white}
\seqsplit{`SCRIPT\_FILENAME`} & abs. path to curr.script \tn 
% Row Count 8 (+ 2)
% Row 6
\SetRowColor{LightBackground}
`SERVER\_PORT` & Server port used \tn 
% Row Count 9 (+ 1)
% Row 7
\SetRowColor{white}
`REQUEST\_URI` & URI is for page access \tn 
% Row Count 10 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{\textgreater{}PHP\_SELF  //return value is relative to root document \newline \textgreater{}SERVER\_PORT //server port used for communication (usually :80 but if using SSL can be replaced par number of secured HTTP  \newline \textgreater{}REQUEST\_URI // can be for example '/index.html'}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{File System Functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`fopen('filename', 'mode')`} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`fclose(\$handle)`} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`fgets(\$handle, \$len)` & {\emph{ without 2nd param, fgets read line till EOL}} \tn 
% Row Count 5 (+ 3)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`fputs(\$handle, 'str')`} \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{`file('folder/file')`} & {\emph{can also be url}} \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`copy(source, dest)`} \tn 
% Row Count 9 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`filemtime(file)`} \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{\seqsplit{`filesize('folder/file')`}} \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{`file\_exists(file)`} & {\bf{doesn't work with HTTP or FTP}} \tn 
% Row Count 13 (+ 2)
% Row 9
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`fread(handle, len)`} \tn 
% Row Count 14 (+ 1)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`fwrite(handle, str)`} \tn 
% Row Count 15 (+ 1)
% Row 11
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`readfile(file)`} \tn 
% Row Count 16 (+ 1)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`fgetcsv(handle,len,sep)`} \tn 
% Row Count 17 (+ 1)
% Row 13
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`fputcsv()`} \tn 
% Row Count 18 (+ 1)
% Row 14
\SetRowColor{LightBackground}
`fseek(handle,offset)` & goto line of curr. offset (needs {\bf{r+}} or {\bf{rw+}} mode) \tn 
% Row Count 21 (+ 3)
% Row 15
\SetRowColor{white}
`rewind(handle)` & goto start of file \tn 
% Row Count 22 (+ 1)
% Row 16
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`chmod(file, unix rights)`} \tn 
% Row Count 23 (+ 1)
% Row 17
\SetRowColor{white}
`unlink('file name')` & deletes file \tn 
% Row Count 25 (+ 2)
% Row 18
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`is\_link('filename')`} \tn 
% Row Count 26 (+ 1)
% Row 19
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{\seqsplit{`is\_writeable('filename')`}} \tn 
% Row Count 27 (+ 1)
% Row 20
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{\seqsplit{`is\_readable('filename')`}} \tn 
% Row Count 28 (+ 1)
% Row 21
\SetRowColor{white}
`pathinfo(\$file, \seqsplit{PATHINFO\_EXTENSION);`} & Ret. ex: pdf \tn 
% Row Count 30 (+ 2)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{File System Functions (cont)}}  \tn
% Row 22
\SetRowColor{LightBackground}
`filetype(\$file)` & Ret: {\bf{file}} or {\bf{dir}} \tn 
% Row Count 2 (+ 2)
% Row 23
\SetRowColor{white}
\seqsplit{`filesize(\$file)/1024`} & Ret. file size ( / 1024 to convert to octets) \tn 
% Row Count 5 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`{\bf{//Example of openinng a file:}} \{\{nl\}\}\$handle = fopen("file.txt", "w");\{\{nl\}\}if (!\$handle) \{\{\{nl\}\}echo 'Can't create file';\{\{nl\}\}exit;\{\{nl\}\}\}\{\{nl\}\}else \{\{\{nl\}\}while(!feof(\$handle)) \{\{\{nl\}\}\$line = fgets(\$handle, 255);\{\{nl\}\}fputs(\$handle, \$line.'suffix');\{\{nl\}\}\$appendLine = fgets(\$handle, 255);\{\{nl\}\}echo \$appendLine.'\textless{}br\textgreater{}';\{\{nl\}\}\}\{\{nl\}\}fclose(\$handle);`}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.18988 cm} x{2.78712 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Folder system functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`is\_dir('folder name')`} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{`opendir('folder name')`} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`readdir(handle)`} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`scandir('folder name')` & Returns array of folder content \tn 
% Row Count 5 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`{\bf{{\emph{//Example with opendir}}}}\{\{nl\}\}\$dir = "/etc/php5/"; \{\{nl\}\}if (is\_dir(\$dir)) \{\{\{nl\}\}if (\$dh = opendir(\$dir)) \{\{\{nl\}\}while ((\$file = readdir(\$dh)) !== false) \{\{\{nl\}\}echo "filename: \$file : filetype: " . filetype(\$dir . \$file) . "\textbackslash{}n";\{\{nl\}\}\}\{\{nl\}\}closedir(\$dh)\{\{nl\}\}\}\{\{nl\}\}\}\{\{nl\}\}{\bf{{\emph{Example with scandir()}}}}\{\{nl\}\}\$nomDossier = 'dossier';\{\{nl\}\}\$tableContDossier = scandir(\$nomDossier);\{\{nl\}\}foreach(\$tableContDossier as \$fic) \{\{\{nl\}\}echo \$fic.'\textless{}br\textgreater{}';\{\{nl\}\}\}`}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{File transfert functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
`is\_uploaded\_file(\$\_FILES{[}'fichier'{]}{[}'tmp\_name'{]}` & verify file presence in tmp folder \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\seqsplit{`move\_uploaded\_file('filename'},'path/filename')` & Checks is file comes from tmp folder unlike fonction copy() \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{`copy('filename','path/filename')`} \tn 
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Database connection}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`mysqli\_connect('host', 'user', 'pass') or die ("Can't establish connecion to databse")`} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\seqsplit{`mysqli\_select('databsename');`}} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`\$queryResult = mysqli\_query("SELECT * FROM table");`} \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{`mysqli\_error()  // boolean to return error if table doesn't exist`} \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`\$row = \seqsplit{mysql\_fetch\_array(\$result}, MYSQL\_ASSOC)`} \tn 
% Row Count 8 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{`mysqli\_list\_db()`} \tn 
% Row Count 9 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`mysqli\_list\_tables()`} \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{`mysqli\_num\_rows() //ret. nb. rows from query`} \tn 
% Row Count 11 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Example fetching array values: \newline while (\$row = \seqsplit{mysql\_fetch\_array(\$result}, MYSQL\_ASSOC) \{ \newline     \$name = \$row{[}'name'{]}; \newline     \$country = \$row{[}'country'{]}; \newline \}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{PHP regular expressions}}  \tn
% Row 0
\SetRowColor{LightBackground}
Check if {\bf{`\$string`}} matches {\bf{`\$expression`}} & \seqsplit{`preg\_match('(docx|doc|xls|pptx)'}, \$extension);` \tn 
% Row Count 3 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{PHP regular expressions}}  \tn
% Row 0
\SetRowColor{LightBackground}
Check if {\bf{`\$extension`}} is either "docx", "doc", "xls" or "pptx" & \seqsplit{`preg\_match('(docx|doc|xls|pptx)'}, \$extension);` \tn 
% Row Count 4 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}