We can add addcslashes in c style by using addcshashes string function in PHP

Escape selected characters with C-style slashes

addcslashes() adds backslashes before characters selected by a character list. Be careful with ranges in the character list because they may include more characters than expected.

$text = 'A-Z 123';
echo addcslashes($text, 'A..Z');

$string="Hello welcome to plus2net Php section";
echo addcslashes($string,'e');

Output of this is here

H\ello w\elcom\e to plus2n\et Php s\ection

Note in all places char e is escaped by adding a slashes.

Unlike addslashes(), addcslashes() escapes only the characters selected by the provided character list. Use a range such as a..z carefully.

Character list examples:
'aeiou' = selected vowels
'a..z' = lowercase letter range

Here is the syntax

string addcslashes(string,string or charlist)

Returns the escaped string.

Here are some examples

$str = "Welcome  'to plus2net PHP section";
echo addcslashes($str,"'");

Welcome \'to plus2net PHP section

Escaping more than one char

$string="Hello welcome to plus2net Php section";
echo addcslashes($string,'con');

Output is here

Hell\o wel\c\ome t\o plus2\net Php se\cti\o\n

For a series of chars

$string="Hello welcome to plus2net Php section";
echo addcslashes($string,'a..z');

Output is here

H\e\l\l\o \w\e\l\c\o\m\e \t\o \p\l\u\s2\n\e\t P\h\p \s\e\c\t\i\o\n

Note that all upper case chars are not escaped

Example 2: Escaping Digits in a String

$str = "Product123";
$escaped_str = addcslashes($str, '0..9');
echo $escaped_str; // Outputs: Product\1\2\3

Example 3: Escaping Special Characters

$str = "Hello! How are you?";
$escaped_str = addcslashes($str, '!');
echo $escaped_str; // Outputs: Hello\! How are you?

String Functions addslashes() Remove HTML tags

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

About the author Watch on YouTube

Connect:

Subscribe to our YouTube Channel here

addcslashes() : adding slashes in a C style