array_push giving comma-seperated array - php

Question

I'm quite new to PHP and coming from a Java background. So here it goes:

I have this code:

$selected = array();
foreach($this->getSelectedOptions() AS $array) {
   array_push($selected, $array['value']);
}
var_dump($selected);

getSelectedOptions() retrieves an array of arrays containing strings.

The result is

array
  0 => string 'abc, def' (length=31)

I was expecting something like this though:

Array
(
    [0] => abc
    [1] => def
)

Why is this happening? How can I make my array look like the latter (without doing any post-processing with commas etc.)

Thanks!

Seems that `$array['value']` isn't actually an array (is this coming from a database?). You may need to `explode(',', $array['value']);`. — gen_Eric, May 14 '12 at 17:53

score 1 · Answer 1 · answered May 14 '12 at 17:57

This is because the getSelectedOptions() gives you a comma seperated string instead of an array. We don't have the function so we can't do anything with that. The only thing that is possible now is post-processing. Here is some PHP doing the post-processing.

$selected = array();
foreach($this->getSelectedOptions() AS $array) {
   $values = explode(', ', $array['value']);
   array_push($selected, $values);
}
var_dump($selected);

score 0 · Accepted Answer · edited May 16 '12 at 02:33

0

You need to split the comma separated values and loop again like below:

$selected = array();
foreach($this->getSelectedOptions() AS $array) {
    //$array now contains comma seperated values
    //split and loop
    $values = explode(',',$array['value']);
    foreach($values as $value) {
        array_push($selected, $value);
    }
}

edited May 16 '12 at 02:33

Krt_Malta

9,265
18
53
91

answered May 14 '12 at 17:54

Ayush

41,754
51
164
239

You're mixing up the variables in the loop. You're exploding an array now and for each value that comes out of the exploded array you're adding the entire string into the array. – Daniël Voogsgerd May 14 '12 at 17:58

array_push giving comma-seperated array - php

2 Answers2