Array flip and reverse in php

Array flip and reverse in php

Flip and reverse sounds similar. Don’t mix-up them 🙂 array_flip function is useful when you only want to shift array index as array value and vice-verse. On the other hand if you want to change only array index in descending/reverse order then array_reverse function works great.

Array flip convert key in to index and index in to key.

$a = array (0 => "a", 1 => "b", 2=>"c");
print_r (array_flip ($a));
//output:  Array ( [a] => 0 [b] => 1



=> 2 )

Array reverse function change the order of array value.

$a = array (0 => "a", 1 => "b", 2=>"c");
print_r (array_reverse ($a));
//output: Array ( [0] => c [1] => b [2] => a )

- Useful Resource:

1. Associative Array syntax in php

2. 4 life savings php array function for web developers

 

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