w3resource

PHP: chop() function

Description

The chop() function is used to remove the whitespaces and other predefined characters from the right side of a string. This function is an alias of rtrim() function.

Version:

(PHP 4 and above)

Syntax:

chop(string_name, char_list)

Parameters:

Name Description Required /
Optional		 Type
string_name The string that will be trimmed. Required String
char_list Specifies which character to remove from the string. Without this parameter, the function removes the following characters.
An ordinary space.
\0" - the NULL-byte.
\t" - tab.
\n" - line feed.
\x0B" - a vertical tab.
"\r" - a carriage return.		 Optional String

Return values:

The changed string.

Value Type: String.

Pictorial Presentation

php-string-chop()

Example: 

<?php
$text1="w3resource.com  ";
$text2="w3resource.com\t\t";
$text3="\t\tw3resource.com\x0A";
$text4="Good Morning";
$trimmed_text=chop($text1);
var_dump($trimmed_text);
echo '<br>';
$trimmed_text=chop($text2);
var_dump($trimmed_text);
echo '<br>';
$trimmed_text=chop($text3);
var_dump($trimmed_text);
echo '<br>';
$trimmed_text=chop($text1,'w3');
var_dump($trimmed_text);
echo '<br>';
$trimmed_text=chop($text4,"ng");
var_dump($trimmed_text);
?>

Output:

string(14) "w3resource.com"
string(14) "w3resource.com"
string(16) "w3resource.com"
string(16) "w3resource.com"
string(10) "Good Morni"

View the example in the browser

See also

PHP Function Reference

Previous: bin2hex
Next: chr



PHP: Tips of the Day

In PHP, there are two versions of logical AND and OR operators.

Operator True if
$a and $b Both $a and $b are true
$a && $b Both $a and $b are true
$a or $b Either $a or $b is true
$a || $b Either $a or $b is true

Note that the && and || opererators have higher precedence than and and or. See table below:

Evaluation Result of $e Evaluated as
$e = false || true True $e = (false || true)
$e = false or true False ($e = false) or true

Because of this it's safer to use && and || instead of and and or.