Extract a substring between two characters in a string PHP

Question

Is there a PHP function that can extract a phrase between 2 different characters in a string? Something like substr();

Example:

$String          


        

Answer 1

$str = "[modid=256]";
preg_match('/\[modid=(?P<modId>\d+)\]/', $str, $matches);

echo $matches['modId'];

Answer 2

You can use a regular expression:

<?php
$string = "[modid=256][modid=345]";
preg_match_all("/\[modid=([0-9]+)\]/", $string, $matches);

$modids = $matches[1];

foreach( $modids as $modid )
  echo "$modid\n";

http://eval.in/9913

Answer 3

You can use a regular expression or you can try this:

$String = "[modid=256]";

$First = "=";
$Second = "]";
$posFirst = strpos($String, $First); //Only return first match
$posSecond = strpos($String, $Second); //Only return first match

if($posFirst !== false && $posSecond !== false && $posFirst < $posSecond){
    $id = substr($string, $First, $Second);
}else{
//Not match $First or $Second
}

You should read about substr. The best way for this is a regular expression.

Answer 4

$String = "[modid=256]";

$First = "=";
$Second = "]";

$Firstpos=strpos($String, $First);
$Secondpos=strpos($String, $Second);

$id = substr($String , $Firstpos, $Secondpos);