本文实例讲述了PHP针对字符串开头和结尾的判断方法。分享给大家供大家参考，具体如下：
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//变量：$s1 = "dotcoo world!";$s2 = "dotcoo";$s3 = "hello dotcoo";//php判断字符串开头：var_dump(substr($s1, 0, strlen($s2)) === $s2);var_dump(strpos($s1, $s2) === 0);var_dump(strncmp($s1, $s2, strlen($s2)) === 0);var_dump(substr_compare($s1, $s2, 0, strlen($s2)) === 0);//php判断字符串结尾：var_dump(substr($s1, 0, strlen($s2)) === $s2);var_dump(substr_compare($s3, $s2, -strlen($s2)) === 0); |
希望本文所述对大家PHP程序设计有所帮助。
