php文件路径信息

<?php
/**   
 * Title: 文件路径信息
 */ 
$filePath = "http://www.baidu.com/include/licence/login.php";
$lzw = "@lvzhen@gwen@";

echo strpos($lzw, '@')."<br>"; //字符串第一次出现的位置 返回boolean
echo "======================="."<br>";
echo strrpos($lzw, '@')."<br>";//字符串最后一次出现的位置 返回boolean
echo "======================="."<br>";

print_r(pathinfo($filePath));  //返回文件路径的信息
echo pathinfo($filePath, PATHINFO_DIRNAME)."<br>";
echo pathinfo($filePath, PATHINFO_BASENAME)."<br>";
echo pathinfo($filePath, PATHINFO_EXTENSION)."<br>";
echo "======================="."<br>";

echo substr($filePath, strrpos($filePath, '.')+1, strlen($filePath))."<br>";
echo "======================="."<br>";
echo substr($filePath, strrpos($filePath, '/')+1, strrpos($filePath, '.')- (strrpos($filePath, '/')+1));
?>

信息如下：