php strrchr() 查找字符串在另一个字符串中最后一次出现的位置
定义和用法
strrchr() 函数查找字符串在另一个字符串中最后一次出现的位置,并返回从该位置到字符串结尾的所有字符。
注释:该函数是二进制安全的。
语法
<code class="language-php">strrchr(string,char)</code>
参数 | 描述 |
---|---|
string | 必需。规定要搜索的字符串。 |
char | 必需。规定要查找的字符。如果该参数是数字,则搜索匹配此数字的 ASCII 值的字符。 |
技术细节
返回值: |
返回从某个字符串在另一个字符串中最后一次出现的位置到主字符串结尾的所有字符。 如果未找到此字符,则返回 FALSE。 |
PHP 版本: | 4+ |
更新日志: | 在 PHP 4.3 中,该函数成为二进制安全。 |
实例
搜索 "What" 在字符串中的位置,并返回从该位置到字符串结尾的所有字符:
<code class="language-php"><?php echo strrchr("Hello world! What a beautiful day!","What"); ?></code>
在线运行
以 "o" 的 ASCII 值搜索 "o" 在字符串中的位置,并返回从该位置到字符串结尾的所有字符:
<code class="language-php"><?php echo strrchr("Hello world!",101); ?></code>
在线运行

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