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PHP chop () function

PHP String Reference PHP String Reference

Examples

Remove the right of the character string:

<?php
$str = "Hello World!";
echo $str . "<br>";
echo chop($str,"World!");
?>

Running instance »

Definition and Usage

chop () function removes the right of a string of blank characters or other predefined characters.


grammar

chop( string,charlist )

参数 描述
string 必需。规定要检查的字符串。
charlist 可选。规定从字符串中删除哪些字符。
如果 charlist 参数为空,则移除下列字符:
  • "\0" - NULL
  • "\t" - 制表符
  • "\n" - 换行
  • "\x0B" - 垂直制表符
  • "\r" - 回车
  • " " - 空格

technical details

return value: Returns the modified string.
PHP version: 4+
Update log: In PHP 4.1.0, add the charlist parameters.


More examples

Example 1

Remove the string on the right side of the newline (\ n):

<?php
$str = "Hello World!\n\n";
echo $str;
echo chop($str);
?>

HTML output of the code above is as follows (view source):

<!DOCTYPE html>
<html>

<body>

Hello World!

Hello World!

</body>
</html>

Browser output of the code above is as follows:

Hello World! Hello World!

Running instance »


PHP String Reference PHP String Reference