Combine an array of keys and an array of values to create an associative array [duplicate]

Question

I have two arrays with matching keys and I need to merge the values of both into a new array. I'm beating myself up trying to figure this out. How can I do this?

$options = array(
    "0" => true,
    "1" => true,
    "2" => false,
    "3" => true
);

$columns = array(
    "0" => "first",
    "1" => "last",
    "2" => "id",
    "3" => "group"
);

$what_I_need = array(
    "first" => true,
    "last" => true,
    "id" => false,
    "group" => true
);

deceze · Accepted Answer · 2011-03-03 02:31:40Z

7

$whatYouNeed = array_combine($columns, $options);

That's assuming the arrays are in the correct order. Otherwise:

$whatYouNeed = array();
foreach ($columns as $key => column) {
    $whatYouNeed[$column] = $options[$key];
}

answered Mar 3, 2011 at 2:31

deceze♦

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4 Comments

Peter Over a year ago

$whatYouNeed !!! You win for playing off my what_i_need!

KJYe.Name Over a year ago

@Peter lol, i got a good laugh out of it

Peter Over a year ago

@dagon I feel for you... But deceze cracked me up and gave me the answer... what would you of done?

user557846 Over a year ago

C'est la vie. I wont lose any sleep over it.

user557846 · Accepted Answer · 2011-03-03 02:30:53Z

2

$what_I_need = array_combine($columns , $options);

array_combine

answered Mar 3, 2011 at 2:30

user557846

Comments

KJYe.Name · Accepted Answer · 2011-03-03 02:32:14Z

2

array array_combine ( array $keys , array $values );

$newArray = array_combine($columns, $options);
print_r($newArray);

should give you:

array(
    "first" => true,
    "last" => true,
    "id" => false,
    "group" => true
);

PHP array_combine

answered Mar 3, 2011 at 2:32

KJYe.Name

17.2k5 gold badges51 silver badges63 bronze badges

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