addcslashes() : adding slashes in a C style

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

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

single quote (')
double quote (")
backslash (\)
NUL (the NUL byte)

string addcslashes(string,string or charlist)

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

Welcome \'to plus2net PHP section

Escaping more than one char

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

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');

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 

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?

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.

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