1. Send Mail using mail function in PHP
$to = "viralpatel.net@gmail.com" ;
$subject = "VIRALPATEL.net" ;
$body = "Body of your message here you can use HTML too. e.g. <br> <b> Bold </b>" ;
$headers = "From: Peter\r\n" ;
$headers .= "Reply-To: info@yoursite.com\r\n" ;
$headers .= "Return-Path: info@yoursite.com\r\n" ;
$headers .= "X-Mailer: PHP5\n" ;
$headers .= 'MIME-Version: 1.0' . "\n" ;
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n" ;
mail( $to , $subject , $body , $headers );
?>
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2. Base64 Encode and Decode String in PHP
function base64url_encode( $plainText ) {
$base64 = base64_encode ( $plainText );
$base64url = strtr ( $base64 , '+/=' , '-_,' );
return $base64url ;
}
function base64url_decode( $plainText ) {
$base64url = strtr ( $plainText , '-_,' , '+/=' );
$base64 = base64_decode ( $base64url );
return $base64 ;
}
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3. Get Remote IP Address in PHP
function getRemoteIPAddress() {
$ip = $_SERVER [ 'REMOTE_ADDR' ];
return $ip ;
}
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The above code will not work in case your client is behind proxy server. In that case use below function to get real IP address of client.
function getRealIPAddr()
{
if (! empty ( $_SERVER [ 'HTTP_CLIENT_IP' ]))
{
$ip = $_SERVER [ 'HTTP_CLIENT_IP' ];
}
elseif (! empty ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ]))
{
$ip = $_SERVER [ 'HTTP_X_FORWARDED_FOR' ];
}
else
{
$ip = $_SERVER [ 'REMOTE_ADDR' ];
}
return $ip ;
}
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4. Seconds to String
This function will return the duration of the given time period in days, hours, minutes and seconds.
e.g. secsToStr(1234567) would return “14 days, 6 hours, 56 minutes, 7 seconds”
function secsToStr( $secs ) {
if ( $secs >=86400){ $days = floor ( $secs /86400); $secs = $secs %86400; $r = $days . ' day' ; if ( $days <>1){ $r .= 's' ;} if ( $secs >0){ $r .= ', ' ;}}
if ( $secs >=3600){ $hours = floor ( $secs /3600); $secs = $secs %3600; $r .= $hours . ' hour' ; if ( $hours <>1){ $r .= 's' ;} if ( $secs >0){ $r .= ', ' ;}}
if ( $secs >=60){ $minutes = floor ( $secs /60); $secs = $secs %60; $r .= $minutes . ' minute' ; if ( $minutes <>1){ $r .= 's' ;} if ( $secs >0){ $r .= ', ' ;}}
$r .= $secs . ' second' ; if ( $secs <>1){ $r .= 's' ;}
return $r ;
}
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5. Email validation snippet in PHP
$email = $_POST [ 'email' ];
if (preg_match( "~([a-zA-Z0-9!#$%&'*+-/=?^_`{|}~])@([a-zA-Z0-9-]).([a-zA-Z0-9]{2,4})~" , $email )) {
echo 'This is a valid email.' ;
} else {
echo 'This is an invalid email.' ;
}
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6. Parsing XML in easy way using PHP
Required Extension: SimpleXML
$xml_string ="<!--?xml version= '1.0' ?-->
<moleculedb>
<molecule name= "Benzine" >
<symbol>ben</symbol>
<code>A</code>
</molecule>
<molecule name= "Water" >
<symbol>h2o</symbol>
<code>K</code>
</molecule>
</moleculedb>";
$xml = simplexml_load_string( $xml_string );
foreach ( $xml ->molecule as $record )
{
echo $record [ 'name' ], ' ' ;
echo $record ->symbol, ' ' ;
echo $record ->code, '<br>' ;
}
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7. Database Connection in PHP
<!--?php
if ( basename ( __FILE__ ) == basename ( $_SERVER [ 'PHP_SELF' ])) send_404();
$dbHost = "localhost" ;
$dbUser = "xxxx" ;
$dbPass = "xxxx" ;
$dbDatabase = "xxxx" ;
$db = mysql_connect( "$dbHost" , "$dbUser" , "$dbPass" ) or die ( "Error connecting to database." );
mysql_select_db( "$dbDatabase" , $db ) or die ( "Couldn't select the database." );
# This function will send an imitation 404 page if the user
# types in this files filename into the address bar.
# only files connecting with in the same directory as this
# file will be able to use it as well.
function send_404()
{
header( 'HTTP/1.x 404 Not Found' );
print '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"-->' . "n" .
'' . "n" .
'<title>404 Not Found</title>' . "n" .
'' . "n" .
'<h1>Not Found</h1>' . "n" .
'<p>The requested URL ' .
str_replace ( strstr ( $_SERVER [ 'REQUEST_URI' ], '?' ), '' , $_SERVER [ 'REQUEST_URI' ]).
' was not found on this server.</p>' . "n" .
'' . "n" ;
exit ;
}
# In any file you want to connect to the database,
# and in this case we will name this file db.php
# just add this line of php code (without the pound sign):
# include "db.php" ;
?>
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8. Creating and Parsing JSON data in PHP
Following is the PHP code to create the JSON data format of above example using array of PHP.
$json_data = array ( 'id' =>1, 'name' => "rolf" , 'country' => 'russia' , "office" => array ( "google" , "oracle" ));
echo json_encode( $json_data );
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Following code will parse the JSON data into PHP arrays.
$json_string = '{"id":1,"name":"rolf","country":"russia","office":["google","oracle"]} ' ;
$obj =json_decode( $json_string );
echo $obj ->name;
echo $obj ->office[0];
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9. Process MySQL Timestamp in PHP
$query = "select UNIX_TIMESTAMP(date_field) as mydate from mytable where 1=1" ;
$records = mysql_query( $query ) or die (mysql_error());
while ( $row = mysql_fetch_array( $records ))
{
echo $row ;
}
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10. Generate An Authentication Code in PHP
This basic snippet will create a random authentication code, or just a random string.
<!--?php
# This particular code will generate a random string
# that is 25 charicters long 25 comes from the number
# that is in the for loop
$string = "abcdefghijklmnopqrstuvwxyz0123456789" ;
for ( $i =0; $i <25; $i ++){
$pos = rand(0,36);
$str .= $string { $pos };
}
echo $str ;
# If you have a database you can save the string in
# there, and send the user an email with the code in
# it they then can click a link or copy the code
# and you can then verify that that is the correct email
# or verify what ever you want to verify
?-->
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11. Date format validation in PHP
Validate a date in “YYYY-MM-DD” format.
function checkDateFormat( $date )
{
if (preg_match ( "/^([0-9]{4})-([0-9]{2})-([0-9]{2})$/" , $date , $parts ))
{
if ( checkdate ( $parts [2], $parts [3], $parts [1]))
return true;
else
return false;
}
else
return false;
}
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12. HTTP Redirection in PHP
<!--?php
header( 'Location: http://you_stuff/url.php' ); // stick your url here
?-->
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13. Directory Listing in PHP
<!--?php
function list_files( $dir )
{
if ( is_dir ( $dir ))
{
if ( $handle = opendir( $dir ))
{
while (( $file = readdir( $handle )) !== false)
{
if ( $file != "." && $file != ".." && $file != "Thumbs.db" )
{
echo '<a target="_blank" href="' . $dir . $file . '"-->' . $file . '<br>' . "\n" ;
}
}
closedir ( $handle );
}
}
}
?>
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14. Browser Detection script in PHP
<!--?php
$useragent = $_SERVER [ 'HTTP_USER_AGENT' ];
echo "<b-->Your User Agent is: " . $useragent ;
?>
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15. Unzip a Zip File
<!--?php
function unzip( $location , $newLocation ){
if ( exec ( "unzip $location" , $arr )){
mkdir ( $newLocation );
for ( $i = 1; $i < count ( $arr ); $i ++){
$file = trim(preg_replace( "~inflating: ~" , "" , $arr [ $i ]));
copy ( $location . '/' . $file , $newLocation . '/' . $file );
unlink( $location . '/' . $file );
}
return TRUE;
} else {
return FALSE;
}
}
?-->
<!--?php
include 'functions.php' ;
if (unzip( 'zipedfiles/test.zip' , 'unziped/myNewZip' ))
echo 'Success!' ;
else
echo 'Error' ;
?-->
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