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% Document Info
\author{Ajay Kumar B}
\pdfinfo{
  /Title (php-mysqli-procedural.pdf)
  /Creator (Cheatography)
  /Author (Ajay Kumar B)
  /Subject (PHP MySQLi Procedural Cheat Sheet)
}

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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
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    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{PHP MySQLi Procedural Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Ajay Kumar B} via \textcolor{DarkBackground}{\uline{cheatography.com/30523/cs/9105/}}}
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\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Ajay Kumar B \\
  \uline{cheatography.com/ajay-kumar-b} \\
  \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 14th September, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
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  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\end{multicols}}




\begin{document}
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% www.emerson.emory.edu/services/latex/latex_169.html
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\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Opening a connection to MySQL}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Syntax: \newline mysqli\_connect(host,username,password,dbname,port,socket); \newline  \newline Returns an object representing the connection to the MySQL server. \newline  \newline Example: \newline \$conn = \seqsplit{mysqli\_connect("localhost"},"my\_user","my\_password","my\_db");} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{mysqli\_error()}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Return the last error description for the most recent function call, if any. \newline  \newline Syntax: \newline mysqli\_error(connection); \newline  \newline Example; \newline echo("Error description: " . mysqli\_error(\$conn));} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Creating a Databasse}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{// Create connection \newline \$conn = \seqsplit{mysqli\_connect(\$servername}, \$username, \$password); \newline // Check connection \newline if (!\$conn) \{ \newline     die("Connection failed: " . \seqsplit{mysqli\_connect\_error());} \newline \} \newline  \newline // Create database \newline \$sql = "CREATE DATABASE myDB"; \newline if (mysqli\_query(\$conn, \$sql)) \{ \newline     echo "Database created successfully"; \newline \} else \{ \newline     echo "Error creating database: " . mysqli\_error(\$conn); \newline \} \newline  \newline mysqli\_close(\$conn);} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Selecting Data}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{// Create connection \newline \$conn = \seqsplit{mysqli\_connect(\$servername}, \$username, \$password, \$dbname); \newline // Check connection \newline if (!\$conn) \{ \newline     die("Connection failed: " . \seqsplit{mysqli\_connect\_error());} \newline \} \newline  \newline \$sql = "SELECT id, firstname, lastname FROM MyGuests"; \newline \$result = mysqli\_query(\$conn, \$sql); \newline  \newline if \seqsplit{(mysqli\_num\_rows(\$result)} \textgreater{} 0) \{ \newline     // output data of each row \newline     while(\$row = \seqsplit{mysqli\_fetch\_assoc(\$result))} \{ \newline         echo "id: " . \$row{[}"id"{]}. " - Name: " . \$row{[}"firstname"{]}. " " . \$row{[}"lastname"{]}. "\textless{}br\textgreater{}"; \newline     \} \newline \} else \{ \newline     echo "0 results"; \newline \} \newline  \newline mysqli\_close(\$conn);} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{mysqli\_num\_rows()}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Return the number of rows in a result set \newline  \newline Syntax: \newline mysqli\_num\_rows(result); \newline  \newline Example: \newline  \seqsplit{\$rowcount=mysqli\_num\_rows(\$result);}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{mysqli\_fetch\_assoc()}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Fetch a result row as an associative array.} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Closing a connection of MySQL}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Syntax: \newline mysqli\_close(connection); \newline  \newline Example: \newline mysqli\_close(\$conn);} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{mysqli\_connect\_error()}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Return an error description from the last connection error, if any. \newline  \newline Syntax: \newline mysqli\_connect\_error(); \newline  \newline Example: \newline die("Connection error: " . \seqsplit{mysqli\_connect\_error());}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Create a Table}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{// Create connection \newline \$conn = \seqsplit{mysqli\_connect(\$servername}, \$username, \$password, \$dbname); \newline // Check connection \newline if (!\$conn) \{ \newline     die("Connection failed: " . \seqsplit{mysqli\_connect\_error());} \newline \} \newline  \newline // sql to create table \newline \$sql = "CREATE TABLE MyGuests ( \newline id INT(6) UNSIGNED AUTO\_INCREMENT PRIMARY KEY, \newline firstname VARCHAR(30) NOT NULL, \newline lastname VARCHAR(30) NOT NULL, \newline email VARCHAR(50), \newline reg\_date TIMESTAMP \newline )"; \newline  \newline if (mysqli\_query(\$conn, \$sql)) \{ \newline     echo "Table MyGuests created successfully"; \newline \} else \{ \newline     echo "Error creating table: " . mysqli\_error(\$conn); \newline \} \newline  \newline mysqli\_close(\$conn);} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Selecting a Database}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Syntax: \newline mysqli\_select\_db(connection,dbname); \newline  \newline Example: \newline mysqli\_select\_db(\$conn,"test");} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{mysqli\_query()}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Perform queries against the database. \newline For successful SELECT, SHOW, DESCRIBE, or EXPLAIN queries it will return a mysqli\_result object. For other successful queries it will return TRUE. FALSE on failure. \newline  \newline Syntax: \newline mysqli\_query(connection,query,resultmode); \newline  \newline Examples: \newline mysqli\_query(\$con,"SELECT * FROM Persons"); \newline  \newline mysqli\_query(\$con,"INSERT INTO Persons (FirstName,LastName,Age) VALUES ('Glenn','Quagmire',33)");} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Inserting into Table}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{// Create connection \newline \$conn = \seqsplit{mysqli\_connect(\$servername}, \$username, \$password, \$dbname); \newline // Check connection \newline if (!\$conn) \{ \newline     die("Connection failed: " . \seqsplit{mysqli\_connect\_error());} \newline \} \newline  \newline \$sql = "INSERT INTO MyGuests (firstname, lastname, email) \newline VALUES ('John', 'Doe', 'john@example.com')"; \newline  \newline if (mysqli\_query(\$conn, \$sql)) \{ \newline     echo "New record created successfully"; \newline \} else \{ \newline     echo "Error: " . \$sql . "\textless{}br\textgreater{}" . mysqli\_error(\$conn); \newline \} \newline  \newline mysqli\_close(\$conn);} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}