parsing string for all matching patterns in php

Question

I would like to match all the patterns like [[WHATEVER]]

The text inside those two brackets can be uppercase or lowercase, it can start with space or end with space and can be made of two or more words separated by space

$string = "The [[QUICK]] brown [[FOX]] jumped over [[whatever]]";

parse $string; //I would like an result to be like array

array( 0 => "[[QUICK]]", 1 => "[[FOX]]", 2 => "[[whatever]]")

Wiktor Stribiżew · Accepted Answer · 2015-04-16 13:18:09Z

2

You can match them like this:

  $re = "/\\[{2}.*?\\]{2}/"; 
  $str = "The [[QUICK]] brown [[FOX]] jumped over [[whatever]]"; 
  preg_match_all($re, $str, $matches);
  print_r($matches[0]);

Output of a sample program:

Array                                                                                                                                                                                                                                                  
(                                                                                                                                                                                                                                                      
    [0] => [[QUICK]]                                                                                                                                                                                                                                   
    [1] => [[FOX]]                                                                                                                                                                                                                                     
    [2] => [[whatever]]                                                                                                                                                                                                                                
)

answered Apr 16, 2015 at 13:18

Wiktor Stribiżew

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2 Comments

user4729289 Over a year ago

Thank you very much for this "faster than light" answer ;)

hwnd Over a year ago

\[\[[^]]*]] is enough.

vks · Accepted Answer · 2015-04-16 13:34:13Z

0

\[\[[^\]]*\]\]

This should do it.

See demo

$re = "/\\[\\[[^\\]]*\\]\\]/im";
$str = "The [[QUICK]] brown [[FOX]] jumped over [[whatever]]";

preg_match_all($re, $str, $matches);

edited Apr 16, 2015 at 13:34

answered Apr 16, 2015 at 13:19

vks

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