$c=array("a"=>"blue","b"=>"green");
array_push($c,$c["d"]="red");
print_r($c);
this code adding the key in to an array. But it also adding the indexed key to same key/value pair..how to avoid this indexed key? output:
Array
(
[a] => blue
[b] => green
[d] => red
[0] => red
)
Just add another key value like this
$c=array("a"=>"blue","b"=>"green");
$c["d"]="red";
print_r($c);
Out put is
Array ( [a] => blue [b] => green [d] => red )
Don't use array_push() here it's not necessary.
Just add new key with value.
$c= array("a"=>"blue","b"=>"green");
$c['d'] = 'red';
Just add the new key.
$c["y"] = "yellow";
You can add more elements by this way:
$array = array("a"=>"blue","b"=>"green");
$array['c'] = 'red';
Have you tried to simply use $c['d'] = 'red'; ?
Do it like by,
$c=array("a"=>"blue","b"=>"green");
$c["d"]="red";
echo "<pre>";
print_r($c);
and Output like,
Array
(
[a] => blue
[b] => green
[d] => red
)
Push the new key-value pair into the array like so:
$c["d"] = "red";
Keys not found within the array will get created.
In addition to the others: you can push elements to the array, but there's no documented way (http://php.net/array_push) to choose your own keys. So array_push uses numeric index by itself.
A possible alternative for associative array is using an (anonymous) object (stdClass). In that case you can set properties and it's a little bit more OOP style of coding.
$foo = new stdClass;
$foo->bar = 1;
var_dump($foo);
// if you really want to use it as array, you can cast it
var_dump((array) $foo);
array_push is basically an operation which treats an array as a stack. Stacks don't have keys, so using an associative array with array_push does not make sense (since you wouldn't be able to retrieve the key with array_pop anyway).
If you want to simulate the behaviour of array_push which allows the simultaneous addition of multiple entries you can do the following:
$c = array_merge($c, [ "d" => "red", "e" => "some other colour" ]);