Big string to nice array - php

Question

I need to make big string into a nice array. String itself is list of tags and tag ids. There can be any amount of them. Here is example of the string: 29:funny,30:humor,2:lol - id:tag_name. Now, I have problem converting it to array - Array ( [29] => funny [30] => humor ). I can get to the part where tags are as so
Array (
[0] = Array (
[0] = 29
[1] = funny
)
[1] = Array (
[0] = 30
[1] = humor
)
)
I've look at array functions too but seems none of them could help me.
Can anyone help me out?

Answer 1

Here's some code to get you going:
$str = "29:funny,30:humor,2:lol";
$arr = array();
foreach (explode(',', $str) as $v) {
list($key, $val) = explode(':', $v);
$arr[$key] = $val;
}
print_r($arr);
/* will output:
Array
(
[29] => funny
[30] => humor
[2] => lol
)
*/
You could replace the foreach with an array_map for example, but I think it's simpler for you this way.
Here's an example of it working: http://codepad.org/4BpnCiEJ

Answer 2

You could use explode() to do this, though it would take two passes. The first to split the string into pairings (explode (',', $string)) and the second to split each paring
$arr = explode (',', $string);
foreach ($arr as &$pairing)
{
$pairing = explode (':', $pairing);
}

Answer 3

$string = '29:funny,30:humor,2:lol';
$arr1 = explode(',', $string);
$result = array();
foreach ($arr1 as $element1) {
$result[] = explode(':', $element1);
}
print_r($result);

Answer 4

You can use preg_match_all
preg_match_all('#([\d]+):([a-zA-Z0-9]+)#', $sString, $aMatches);
// Combine the keys with the values.
$aArray = array_combine($aMatches[1], $aMatches[2]);
echo "<pre>";
print_r($aArray);
echo "</pre>";
Outputs:
Array
(
[29] => funny
[30] => humor
[2] => lol
)

Answer 5

<?php
$test = '29:funny,30:humor,2:lol';
$tmp_array = explode(',', $test);
$tag_array = ARRAY();
foreach ($tmp_array AS $value) {
$pair = explode(':', $value);
$tag_array[$pair[0]] = $pair[1];
}
var_dump($tag_array);
?>