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Caldeiro
Asked: 2020-04-11 03:14:52 +0800 CST 2020-04-11 03:14:52 +0800 CST

Get certain parts of a PHP string

  • 772

I have this string:

"a:11: i:0;s:3:"191";i:1;s:3:"256";i:2;s:3:"247";i:3;s:3:"244";i:4;s:3:"257";i:5;s:3:"250";i:6;s:3:"253";i:7;s:3:"258";i:8;s:3:"261";i:9;s:3:"259";i:10;s:3:"542";}

I want to get the numbers that are in quotes ex: "191"

I've tried explode, but it cuts in places where it doesn't work for me. Neither split, up to strpos, but returns the position of the first match.

I would need something like what is between "%"

php

2 Answers

  1. Best Answer

    Try this:

    $cadena = 'a:11: i:0;s:3:"191";i:1;s:3:"256";i:2;s:3:"247";i:3;s:3:"244";i:4;s:3:"257";i:5;s:3:"250";i:6;s:3:"253";i:7;s:3:"258";i:8;s:3:"261";i:9;s:3:"259";i:10;s:3:"542"';
preg_match_all('/"(.*?)"/', $cadena, $m);
print_r($m[1]);

    Using this regular expression should return you an array with the numbers in quotes.

    • 10

  2. The format of that string you have is a serializephp. That is, a serialized array, but instead of using json, the php serialize function has been used. https://www.php.net/manual/en/function.unserialize.php

    What you should do is de-serialize it:

    $cadena= '"a:11: i:0;s:3:"191";i:1;s:3:"256";i:2;s:3:"247";i:3;s:3:"244";i:4;s:3:"257";i:5;s:3:"250";i:6;s:3:"253";i:7;s:3:"258";i:8;s:3:"261";i:9;s:3:"259";i:10;s:3:"542";}';
$cadena_array = unserialize($cadena);

    With this, you will have in $cadena_array a php array, which you can access with the corresponding array indices.

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