You can try this approach: preg_match("/^\S.* (\b\d+)$/", $str, $matches); echo end($matches)."\n";. For instance if you use the following ... ... <看更多>

This video walks you through building up a regular expression that validates German and Austrian zip codes. ... <看更多>

PHP 手册告诉我们， preg_match 函数的返回值有3种，分别为（安全的写法是使用=== 运算符对返回值进行比较，手册推荐用效率更快的strpos 函数 ... ... <看更多>

<?php $var = 'a.b.c'; preg_match('/\./', $var, $var); /** @var array $var */ array_values($var); // same: preg_match_all ... ... <看更多>