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
– gen_Eric, Commented May 14, 2012 at 17:53

Daniël Voogsgerd · Accepted Answer · 2012-05-14 17:57:32Z

1

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);

answered May 14, 2012 at 17:57

Daniël Voogsgerd

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Comments

Krt_Malta · Accepted Answer · 2012-05-16 02:33:00Z

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, 2012 at 2:33

Krt_Malta

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answered May 14, 2012 at 17:54

Ayush

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1 Comment

Daniël Voogsgerd Over a year ago

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.

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