get first key of array php
$firstKey = array_key_first($array);
get first key of array php
$firstKey = array_key_first($array);
php get first element of array
$colors = array(2=>"blue",3 =>"green",1=>"red");
$firstValue = reset($colors); //blue
$firstKey = key($colors); //2
get first element of array php
array_pop(array_reverse($array));
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