PHP: Move associative array element to beginning of array
php
Solution
You can use the array union operator (`+`) to join the original array to a new associative array using the known key (`one`).
$myArray = array('one' => $myArray['one']) + $myArray;
// or ['one' => $myArray['one']] + $myArray;
Array keys are unique, so it would be impossible for it to exist in two locations.
See further at the doc on Array Operators:
The + operator returns the right-hand array appended to the left-hand array; for keys that exist in both arrays, the elements from the left-hand array will be used, and the matching elements from the right-hand array will be ignored.
Problem
What would be the best method of moving any element of an associative array to the beginning of the array? For example, say I have the following array: ``` $myArray = array( 'two' => 'Blah Blah Blah 2', 'three' => 'Blah Blah Blah 3', 'one' => 'Blah Blah Blah 1', 'four' => 'Blah Blah Blah 4', 'five' => 'Blah Blah Blah 5', ); ``` What i want to do is move the 'one' element to the beginning and end up with the following array: ``` $myArray = array( 'one' => 'Blah Blah Blah 1', 'two' => 'Blah Blah Blah 2', 'three' => 'Blah Blah Blah 3', 'four' => 'Blah Blah Blah 4', 'five' => 'Blah Blah Blah 5', ); ```