PHP addcslashes () function
Examples
In a backslash before the "W":
<?php
$str = addcslashes("Hello World!","W");
echo($str);
?>
$str = addcslashes("Hello World!","W");
echo($str);
?>
Running instance »
Definition and Usage
addcslashes () function returns the character in front of the specified string to add the backslash.
Note: addcslashes () function is case-sensitive.
NOTE: to 0 (NULL), r (carriage return), n (newline), t (feed), f (tabs) and v (vertical tab) application addcslashes () Be careful.In PHP, \ 0, \ r, \ n, \ t, \ f and \ v escape sequences are predefined.
grammar
addcslashes( string,characters )
| 参数 | 描述 |
|---|---|
| string | 必需。规定要转义的字符串。 |
| characters | 必需。规定要转义的字符或字符范围。 |
technical details
| return value: | Returns the escaped string. |
|---|---|
| PHP version: | 4+ |
More examples
Example 1
Adding to a string of specific characters backslash:
<?php
$str = "Welcome to my humble Homepage!";
echo $str."<br>";
echo addcslashes($str,'m')."<br>";
echo addcslashes($str,'H')."<br>";
?>
$str = "Welcome to my humble Homepage!";
echo $str."<br>";
echo addcslashes($str,'m')."<br>";
echo addcslashes($str,'H')."<br>";
?>
Running instance »
Example 2
Adding to a string of characters within a range of backslash:
<?php
$str = "Welcome to my humble Homepage!";
echo $str."<br>";
echo addcslashes($str,'A..Z')."<br>";
echo addcslashes($str,'a..z')."<br>";
echo addcslashes($str,'a..g');
?>
$str = "Welcome to my humble Homepage!";
echo $str."<br>";
echo addcslashes($str,'A..Z')."<br>";
echo addcslashes($str,'a..z')."<br>";
echo addcslashes($str,'a..g');
?>
Running instance »
PHP String Reference