Example of how PHP uses one line of code to delete all files in a directory

This article mainly introduces you to relevant information about how PHP uses one line of code to delete all files in a directory. The article first gives a brief introduction to the glob function, and then introduces the deletion method very well through the PHP sample code. For details, friends who are interested in PHP can refer to it. Let’s take a look below.

Preface

Presumably many people will write a few lines or even dozens of lines of code to list all files into an arrayDelete, but the glob function solves the problem in minutes! Let’s take a look at the detailed introduction below.

glob syntax description:

array glob ( string $pattern [, int $flags = 0 ] )

glob() function searches for all file paths matching pattern according to the rules used by libc glob() function , similar to the rules used by general shells. No abbreviation expansion or parameter substitution is performed. Glob is powerful in using regular path matching.

flags Valid flags are:

• GLOB_MARK - Add a slash

  ## to each returned item
• #GLOB_NOSORT - Return the files in their original order of appearance in the directory (not sorted)

• GLOB_NOCHECK - Return if no files match for

  search's pattern

• GLOB_NOESCAPE - Backslash not escaped

  metacharacter

##GLOB_BRACE - Extended {a, b,c} to match 'a', 'b' or 'c'
GLOB_ONLYDIR - Return only directory entries matching pattern
GLOB_ERR - Stop and read
• error messages

  (e.g. unreadable directories), by default ignore all errors

Example 1##

<?php
print_r(glob("*.txt"));
?>

The output is similar to:

Array
(
[0] => target.txt
[1] => source.txt
[2] => test.txt
[3] => test2.txt
)

Example 2

<?php
print_r(glob("*.*"));
?>

The output is similar to:

Array
(
[0] => contacts.csv
[1] => default.php
[2] => target.txt
[3] => source.txt
[4] => tem1.tmp
[5] => test.htm
[6] => test.ini
[7] => test.php
[8] => test.txt
[9] => test2.txt
)

Delete all files in the directory

array_map('unlink', glob('*'));

The above is all the content of this article, I hope it will be helpful to everyone's learning ! !

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