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dalethedeveloper/gist:966848

Created May 11, 2011 16:47
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Revisions

  1. dalethedeveloper revised this gist May 11, 2011. 1 changed file with 17 additions and 14 deletions.
    31 changes: 17 additions & 14 deletions gistfile1.php
    View file
    Original file line number Diff line number Diff line change
    @@ -19,7 +19,6 @@ function down($a,$x) {
    } else { return $a; }
    }

    // Up
    function up($a,$x) {
    if( $x > 0 and $x < count($a) ) {
    $b = array_slice($a,0,($x-1),true);
    @@ -43,19 +42,7 @@ function up($a,$x) {
    )
    */

    // Move item 4 down
    print_r(down($a,4));
    /* Output
    Array
    (
    [0] => a
    [1] => b
    [2] => c
    [3] => d
    [4] => e
    )
    */
    // Move item 5 up
    // Move item 4 up
    print_r(up($a,4));
    /* Output
    Array
    @@ -67,6 +54,7 @@ function up($a,$x) {
    [4] => d
    )
    */

    // Move item 0 down
    print_r(down($a,0));
    /* Output
    @@ -79,6 +67,21 @@ function up($a,$x) {
    [4] => e
    )
    */

    // Test, move the bottom item down (ie. do nothing)
    print_r(down($a,4));
    /* Output
    Array
    (
    [0] => a
    [1] => b
    [2] => c
    [3] => d
    [4] => e
    )
    */

    // Test, move the top item up (ie. do nothing)
    print_r(up($a,0));
    /* Output
    Array
  2. dalethedeveloper created this gist May 11, 2011.
    92 changes: 92 additions & 0 deletions gistfile1.php
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,92 @@
    <?php
    /*
    A quick set of functions to move items in a non-associative array
    up or down by one, shifting the items around it appropriately.
    Original usage was to for a set of UP and DOWN buttons to
    manipulate the order of an array of items stored in Wordpress option.
    */

    $a = array('a','b','c','d','e');

    function down($a,$x) {
    if( count($a)-1 > $x ) {
    $b = array_slice($a,0,$x,true);
    $b[] = $a[$x+1];
    $b[] = $a[$x];
    $b += array_slice($a,$x+2,count($a),true);
    return($b);
    } else { return $a; }
    }

    // Up
    function up($a,$x) {
    if( $x > 0 and $x < count($a) ) {
    $b = array_slice($a,0,($x-1),true);
    $b[] = $a[$x];
    $b[] = $a[$x-1];
    $b += array_slice($a,($x+1),count($a),true);
    return($b);
    } else { return $a; }
    }

    // Start
    print_r($a);
    /* Output
    Array
    (
    [0] => a
    [1] => b
    [2] => c
    [3] => d
    [4] => e
    )
    */

    // Move item 4 down
    print_r(down($a,4));
    /* Output
    Array
    (
    [0] => a
    [1] => b
    [2] => c
    [3] => d
    [4] => e
    )
    */
    // Move item 5 up
    print_r(up($a,4));
    /* Output
    Array
    (
    [0] => a
    [1] => b
    [2] => c
    [3] => e
    [4] => d
    )
    */
    // Move item 0 down
    print_r(down($a,0));
    /* Output
    Array
    (
    [0] => b
    [1] => a
    [2] => c
    [3] => d
    [4] => e
    )
    */
    print_r(up($a,0));
    /* Output
    Array
    (
    [0] => a
    [1] => b
    [2] => c
    [3] => d
    [4] => e
    )
    */