chop – PHP String Functions

Syntax :

string chop (string, charlist);

Description :

chop function will remove predefined characters or specified characters in charlist if any from the right end of a string. This function is an alias of- rtrim() function.

Parameter :

string –  String to check.

charlist – Optional. This is optional parameter, If any value is provided, then specified characters will be removed from right of a string.

The following characters are removed if the charlist parameter is empty:

• “\0” – NULL
• “\t” – tab
• “\n” – new line
• “\r” – carriage return
• ” ” – ordinary white space
• “\x0B” – vertical tab

Output :

This will return the string after removing specified characters in the charlist or predefined characters from right of a string.

Related functions : rtrim().

chop – PHP Functions Example 1 :

$strExample = chop("Hi from tutorialmines.net!    ");
echo($strExample);

In above example ,We have string of  “Hi from tutorialmines.net!    “. So, when we apply chop function. This will remove all ” ” (ordinary white space) from right of a input string.

Now Output will become –

Hi from tutorialmines.net!

chop() with charlist() – PHP Functions Example 2 :

If you want to remove string ” chop – PHP String Functions” from the right hand side of a string. See below example for doing it.

$strExample = ("Hi from tutorialmines.net! chop - PHP String Functions");
echo $strExample . "<br>";
echo chop($strExample,"chop - PHP String Functions");

In above example ,We have string of  “Hi from tutorialmines.net! chop – PHP String Functions”. So, when we apply chop function. This will remove string “chop – PHP String Functions” from right of a input string.

Output will be like below:

Hi from tutorialmines.net! chop - PHP String Functions
Hi from tutorialmines.net!