PHP: Create array of arrays, ignoring empty arrays
I need to create an array of arrays.
I have been usingarray_map(null,$a,$b,$c)
开发者_如何学Pythonto do this and it works fine, however, it doesn't work if one of the mapped arrays doesn't exist.
To get around this problem I have used:
$myArray= array();
if (isset($a)) {
array_push($myArray,$a);
}
if (isset($b)) {
array_push($myArray,$b);
}
if (isset($c)) {
array_push($myArray,$c);
}
Is there a more elegant/shorter method of writing this?
I've tried applying some functions viaarray_map($function,$a,$b,$c)
but with no luck.$myArray = array_filter(array($a, $b, $c));
You could use the following function:
function joinArrays(){
$arrays = func_get_args();
$output = array();
foreach($arrays as $array){
if(!empty($array)) array_push($output, $array);
}
return $output;
}
call like: joinArrays($a, $b, $c, etc..);
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