PHP addslashes() Function

PHP addslashes() function is used to return a quote string with slashes. It works with some characters:

Single quote (')
Double quote(")
Blackslash(|)
NUL (the NUL byte)

Syntax:

Parameter	Description	Required/Optional
string	String to be escaped	Required

Example 1

<?php 
$str = 'What does "WHO" mean?';
echo "Your string is :".$str;
echo "<br>"."By using addslashes() function the result  is".addslashes($str); 
?> 

Output:

Your string is :What does "WHO" mean?
By using addslashes() function the result isWhat does \"WHO\" mean?

Example 2

<?php
$str = "Who's the father of PHP?";
echo $str . " This is not safe in a database query.<br>";
echo addslashes($str) . " This is safe in a database query.";
?>

Output:

Who's the father of PHP? This is not safe in a database query.
Who\'s the father of PHP? This is safe in a database query.

Example 3

<?php
$str =  "Wow' PHP?";
eval("echo '" . addslashes($str) . "';");
?>

Output:

Wow' PHP?

A use case of addslashes() is escaping the abovementioned characters in a string that is to be evaluated by PHP:

Example 4

<?php
$str = "Is The Father of PHP'Rasmus?";
//Is The Father of PHP\'Rasmus?
echo addslashes($str);
?>

Output:

Is The Father of PHP\'Rasmus?

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PHP addslashes() Function

Syntax:

Example 1

Example 2

Example 3

A use case of addslashes() is escaping the abovementioned characters in a string that is to be evaluated by PHP:

Example 4

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