The What
Syntax
array array_filter ( array $array [, callable $callback [, int $flag = 0 );
Description
The array_filter function iterates over each value in the array passing them to the callback function. If the callback function returns true, the current value from array is returned into the result array. Array keys are preserved.
If you listen carefully, you can hear the 1s and 0s flowing in your computer.
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