strrchr
(PHP 4, PHP 5)
strrchr — Find the last occurrence of a character in a string
说明
string strrchr
( string $haystack
, string $needle
)
This function returns the portion of haystack which starts at the last occurrence of needle and goes until the end of haystack .
参数
- haystack
-
- needle
-
If needle contains more than one character, only the first is used. This behavior is different from that of strchr().
If needle is not a string, it is converted to an integer and applied as the ordinal value of a character.
返回值
This function returns the portion of string, or FALSE if needle is not found.
更新日志
| 版本 | 说明 |
|---|---|
| 4.3.0 | This function is now binary safe. |
范例
Example#1 strrchr() example
<?php
// get last directory in $PATH
$dir = substr(strrchr($PATH, ":"), 1);
// get everything after last newline
$text = "Line 1\nLine 2\nLine 3";
$last = substr(strrchr($text, 10), 1 );
?>
注释
Note: 本函数可安全用于二进制对象。
