PHP的preg_matchfind多个事件

正则expression式在PHP中使用preg_match查找多个相同的string的正确语法是什么？

例如，查找以下段落中是否出现以下string：

$string = "/brown fox jumped [0-9]/"; $paragraph = "The brown fox jumped 1 time over the fence. The green fox did not. Then the brown fox jumped 2 times over the fence" if (preg_match($string, $paragraph)) { echo "match found"; }else { echo "match NOT found"; } 

Answer 1

你想使用preg_match_all() 。 这是它在你的代码中的样子。 实际的函数返回find的项目数，但$matches数组将保存结果：

 <?php $string = "/brown fox jumped [0-9]/"; $paragraph = "The brown fox jumped 1 time over the fence. The green fox did not. Then the brown fox jumped 2 times over the fence"; if (preg_match_all($string, $paragraph, &$matches)) { echo count($matches[0]) . " matches found"; }else { echo "match NOT found"; } ?> 

会输出：

find2个匹配项