php 使用功能

Jun 23, 2016 pm 02:32 PM

最近自己一直打算学习php,现在对php 有了一定的了解,php语法跟js还是很像的,相信会用js的都可以很快学会php,

 接下来给大家介绍个使用 Glob() 查找文件

很多PHP的函数都有一个比较长的自解释的函数名,但是,当你看到?glob()的时候,你可能并不知道这个函数是用来干什么的,除非你对它已经很熟悉了。

你可以认为这个函数就好?scandir()一样,其可以用来查找文件。

// 取得所有的后缀为PHP的文件  $files = glob('*.php');    print_r($files);  /* 输出:  Array  (      [0] => phptest.php      [1] => pi.php      [2] => post_output.php      [3] => test.php  )  */  
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你还可以查找多种后缀名

// 取PHP文件和TXT文件  
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$files = glob('*.{php,txt}', GLOB_BRACE); 
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   print_r($files);  /* 输出: 
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 Array  (    
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  [0] => phptest.php     
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 [1] => pi.php     
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 [2] => post_output.php   
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   [3] => test.php    
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  [4] => log.txt     
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 [5] => test.txt  )  */  
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你还可以加上路径:

$files = glob('../images/a*.jpg'); 
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   print_r($files);  
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/* 输出: 
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 Array  (    
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  [0] => ../images/apple.jpg  
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    [1] => ../images/art.jpg  )  */  
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如果你想得到绝对路径,你可以调用?realpath()函数:

$files = glob('../images/a*.jpg');  
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  // applies the function to each array element 
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 $files = array_map('realpath',$files);  
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  print_r($files);  
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/* output looks like: 
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 Array  (      [0] => C:wampwwwimagesapple.jpg     
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 [1] => C:wampwwwimagesart.jpg  ) 
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 */  
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以上这些是参考网络信息,最终由IT潮流网整合而来。
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详见:IT潮流网
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