10 Most Important PHP Code Snippets for Web Developers
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Here in this Post I am sharing some most important PHP code snippets which are used in day to day life of web developer.
HTML Mail
This code will send the mail in HTML format.
sendmail.php
{code type=codetype}
<?php
//change this to your email.
$to = “test@test.com”;
$from = “test2@test2.com”;
$subject = “Call for verification”;
//begin of HTML message
$message = ”
<html>
<body>
Test Mail<br>
test mail<br>
testmail<br><br>
Final test mail
</body>
</html>”; //end of message
$headers = “From: $from\r\n”;
$headers .= “Content-type: text/html\r\n”;
//options to send to cc+bcc
//$headers .= “Cc: [email]test3@test3.com[/email]“;
//$headers .= “Bcc: [email]test4@test4.com[/email]“;
// now lets send the email.
mail($to, $subject, $message, $headers);
echo “Message has been sent….!”;
?>
{/code}
Text to Image Convertor
This code will convert the given text to image format. It is generally used for captcha purpose and also to save email addresses from BOTs
form.php
{code type=codetype}
<form action=”check.php” method=”post”>
<img src=”code.php”>
<input type=”text” name=”num” maxlength=”4″><br>
<input type=”submit” name=”submit” value=”Check”>
</form>
{/code}
code.php
{code type=codetype}
<?php
// Usage <img src=”textToImage.php?text=emailAddress@emailProvider.com”>
header (“Content-type: image/png”);
$textToConvert = rand(1111,9999);
$font = 4;
$width = ImageFontWidth($font) * strlen($textToConvert);
$height = ImageFontHeight($font);
$im = @imagecreate ($width,$height);
$background_color = imagecolorallocate ($im, 255, 255, 255); //this means it’s white bg
$text_color = imagecolorallocate ($im, 0, 0,0);//and of course black text
imagestring ($im, $font, 0, 0, $textToConvert, $text_color);
imagepng ($im);
session_start();
$_SESSION['img'] = $textToConvert;
?>
{/code}
check.php
{code type=codetype}
<?php
session_start();
if($_SESSION['img'] != $_POST['num']){
echo “The number you entered doesnot match the image.<br>
<a href=\”form.php\”>Try Again</a><br>”;
}else{
echo “The numbers Match!<br>
<a href=\”form.php\”>Try Again</a><br>”;
}
?>
{/code}
Valid Email Address
This code will check if the email address format is valid or not
check.php
{code type=codetype}
<?php
$email=”a@a.c.com”;
if(eregi(“^([_a-z0-9-]+)(\.[_a-z0-9-]+)*@([a-z0-9-]+)(\.[a-z0-9-]+)*(\.[a-z]{2,4})$”, $email))
{
echo “Valid Email Address”;
}
else
{
echo “Invalid email address”;
}
?>
{/code}
List Directory Content
This code will list directory contents.
code.php
{code type=codetype}
<?php
$dir=’c:\test’;
if(is_dir($dir))
{
if($handle = opendir($dir))
{
while(($file = readdir($handle)) !== false)
{
if($file != “.” && $file != “..” && $file != “Thumbs.db”)
{
echo ‘<a target=”_blank” href=”‘.$dir.$file.’”>’.$file.’</a><br>’.”\n”;
}
}
closedir($handle);
}
}
?>
{/code}
Get Real IP Address of the Client
This code will help you get the real IP address of the client. It checks if any proxy is used.
getip.php
{code type=codetype}
<?php
if (!empty($_SERVER['HTTP_CLIENT_IP']))
{
$ip=$_SERVER['HTTP_CLIENT_IP'];
}
elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
//to check ip is pass from proxy
{
$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
}
else
{
$ip=$_SERVER['REMOTE_ADDR'];
}
echo $ip;
?>
{/code}
Download File Forcefully
This code will enable the client to download the file forcefully.
forcedownload.php
{code type=codetype}
<?php
$file = “C:\test.jpg”;
if ((isset($file))&&(file_exists($file))) {
header(“Content-length: “.filesize($file));
header(‘Content-Type: application/octet-stream’);
header(‘Content-Disposition: attachment; filename=”‘ . $file . ‘”‘);
readfile(“$file”);
} else {
echo “No file selected”;
}
?>
{/code}
Add Http to URL
This codes adds and “http://” to the url specified to it
addhttp.php
{code type=codetype}
<?php
$url = “myphpscriptz.com”;
if (!preg_match(“/^(http|ftp):/”, $url))
{
$url = ‘http://’.$url;
echo $url;
}
?>
{/code}
Convert URL to Link
This code converts the given URL to a Link
urltolink.php
{code type=codetype}
<?php
$text = “http://myphpscriptz.com”;
$text = eregi_replace(‘(((f|ht){1}tp://)[-a-zA-Z0-9@:%_+.~#?&//=]+)’,'<a href=”\1″>\1</a>’, $text);
$text = eregi_replace(‘([[:space:]()[{}])(www.[-a-zA-Z0-9@:%_+.~#?&//=]+)’,'\1<a href=”http://\2″>\2</a>’, $text);
$text = eregi_replace(‘([_.0-9a-z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,3})’,'<a href=”mailto:\1″>\1</a>’, $text);
echo $text;
?>
{/code}
Display Gravatar Image
This code displays gravatar image
gravatar.php
{code type=codetype}
<?php
/******************
*@email – Email address to show gravatar for
*@size – size of gravatar
*@default – URL of default gravatar to use
*@rating – rating of Gravatar(G, PG, R, X)
*/
function show_gravatar($email, $size, $default, $rating)
{
echo ‘<img src=”http://www.gravatar.com/avatar.php?gravatar_id=’.md5($email).
‘&default=’.$default.’&size=’.$size.’&rating=’.$rating.’” width=”‘.$size.’px”
height=”‘.$size.’px” />’;
}
$email=”abhi.sanghvi@yahoo.co.in”;
$size=100;
$default = “http://myphpscriptz.com”;
$rating = “G”;
show_gravatar($email, $size, $default, $rating);
?>
{/code}
Unzip File using PHP
This code unzip the zip file on server
unzip.php
{code type=codetype}
<?php
/**********************
*@file – path to zip file
*@destination – destination directory for unzipped files
***********************/
$file=”test.zip”;
$destination=”unzip”;
// create object
$zip = new ZipArchive() ;
// open archive
if ($zip->open($file) !== TRUE) {
die (‘Could not open archive’);
}
// extract contents to destination directory
$zip->extractTo($destination);
// close archive
$zip->close();
echo ‘Archive extracted to directory’;
?>
{/code}
You can download all the above mentioned code here
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About the Author: Abhishek Sanghvi
Hi Friends, my name is Abhishek Sanghvi and I am the founder of this “open source script” site MYPHPSCRIPTZ. I have been learning and practising PHP from the last 3 years. You could always contact me if you wish to have some code for your need. I would surely try and solve them for you at abhishek(at)myphpscriptz(dot)com
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[...] reading here: 10 Most Important PHP Code Snippets for Web Developers … No [...]
I believe you mean most awkward and retarded. Not best.
Valid Email address regex does not conform to RFC2821. It misses various valid email addresses, so call it that, “invalid email address verification”.
Hi mario,
Thanks for your valuable comment. Its a basic tutorial for noobs, smart guys knows how to handle such issues properly. They dont need such basic tutorials!! What do you say?
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