PHP常用命令

pathinfo (path,options)

pathinfo() 函数以数组的形式返回关于文件路径的信息。

print_r(pathinfo("/testweb/test.txt"));
// return
Array
(
    [dirname] => /testweb
    [basename] => test.txt
    [extension] => txt
    [filename] => test
)

// 可选参数 PATHINFO_DIRNAME, PATHINFO_BASENAME, PATHINFO_EXTENSION, PATHINFO_FILENAME
print_r(pathinfo("/testweb/test.txt",PATHINFO_BASENAME)); 
// return
test.txt

parse_url()

$test = parse_url("http://localhost/index.php?name=tank&sex=1#top");
print_r($test);

// return
Array
(
 [scheme] => http //使用什么协议
 [host] => localhost //主机名
 [path] => /index.php //路径
 [query] => name=tank&sex=1 // 所传的参数
 [fragment] => top //后面根的锚点
)

basename (path,suffix)

basename() 函数返回路径中的文件名部分。

suffix: 可选。规定文件扩展名。如果文件有名有文件扩展名，将不会显示这个扩展名。

<?php
$path = "/testweb/home.php";

//Show filename with file extension
echo basename($path) ."<br/>";
//return
home.php

//Show filename without file extension
echo basename($path,".php");
//return
home

$test = basename("http://localhost/index.php?name=tank&sex=1#top");
echo $test;
//return
index.php?name=tank&sex=1#top