An 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 in great detail through sample code. , friends in need can refer to it, let’s take a look below.

Preface

I think many people will write a few lines or even dozens of lines of code to list all files into an array for deletion, 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 follows libc glob() The rules used by the function find all file paths that match pattern, similar to the rules used by ordinary 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 the pattern used for the search if no files match

• GLOB_NOESCAPE - backslash unescapes metacharacter

• GLOB_BRACE - expands {a,b,c} to match 'a', 'b ' or 'c'

• GLOB_ONLYDIR - Return only directory entries matching the pattern

• GLOB_ERR - Stop and read an error message (e.g. unreadable directory), 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 the directory All files

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

Summary

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