检查字符串中的字符

Question

我想看看字符串"profile.php"是否结束，或者最后4个charcaters是否等于".php"

如何使用PHP

执行此操作

谢谢！

Answer 1

使用substr()获取最后4个字符，然后将其与字符串".php"进行比较。

if (substr("profile.php", -4) === ".php")
{
    echo "Ends in .php";
}
else
{
    echo "Doesn't end in .php";
}

Answer 2

您可以尝试PHP的内置函数pathinfo。

<?php
$path_parts = pathinfo('/www/htdocs/inc/lib.inc.php');
echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n"; // return php
echo $path_parts['filename'], "\n";
?>