Two Dimensional Array Key Swap in PHP
Example: array[key1][key2] → array[key2][key1]
This function takes a two dimensional array[x][y], swaps the first key with the second key so the values can be referenced using array[y][x]. It was also added as a user contributed note to the PHP: Array Manual on php.net’s website on October 10, 2009.
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function array_two_key_swap( $two_dimensional_array ) {
/*
Writen by: Leonardo Martinez
Contact: http://www.leonardomartinez.com/contact/
Created: 10-10-2009
Modified: 10-15-2009
This function takes a two dimensional array[x][y], swaps the first
key with the second key so the values can be referenced using array[y][x].
Example:
samplearray['directiory'][0] = "myicons";
samplearray['directiory'][1] = "myicons";
samplearray['directiory'][2] = "myiconsold";
samplearray['directiory'][3] = "myiconsold";
samplearray['filename'][0] = "hat.png";
samplearray['filename'][1] = "dog.png";
samplearray['filename'][2] = "mice.png";
samplearray['filename'][3] = "rat.png";
The above array converts to:
newarray[0]['filename'] = "hat.png";
newarray[0]['directiory'] = "myicons";
newarray[1]['filename'] = "dog.png";
newarray[1]['directiory'] = "myicons";
newarray[2]['filename'] = "mice.png";
newarray[2]['directiory'] = "myiconsold";
newarray[3]['filename'] = "rat.png";
newarray[3]['directiory'] = "myiconsold";
*/
$keys = array_keys( $two_dimensional_array );
$array_swaped = array();
foreach( $two_dimensional_array[$keys[0]] as $key_counter => $value1 ) {
$temp_array = array();
foreach( $keys as $key) {
$temp_array[$key] = $two_dimensional_array[$key][$key_counter];
}
$array_swaped[] = $temp_array;
}
return $array_swaped;
}