发布网友 发布时间:2024-12-01 00:10
共1个回答
热心网友 时间:2024-12-01 01:22
在PHP代码中,preg_match函数被用于在文本字符串中进行模式匹配。这里,它以斜杠包围的正则表达式"php/i"作为模式,其中"i"表示不区分大小写。
下面的示例展示了如何使用preg_match:
php
<?php
if (preg_match ("/php/i", "PHP is the web scripting language of choice.")) {
echo "
A match was found: 'php' was found in the text.
";
} else {
echo "
No match found: 'php' was not found in the text.
";
}
?>
另一方面,另一个PHP片段展示了Smarty类的使用,它主要用于模板引擎,与正则表达式搜索无关:
php
<?php
$smarty = new Smarty;
$smarty->assign("Name", "Fred Irving Johnathan Bradley Peppergill");
$smarty->assign("FirstName", array("John", "Mary", "James", "Henry"));
$smarty->assign("LastName", array("Doe", "Smith", "Johnson", "Case"));
$smarty->assign("Class", ...);
$smarty->assign("contacts", ...);
$smarty->assign("option_values", ...);
$smarty->assign("option_output", ...);
$smarty->assign("option_selected", "NE");
$smarty->display('index.tpl');
?>
这部分代码主要用于设置模板变量和输出数据,而不是在文本中搜索特定模式。