array_shift but preserve keys

Question

My array looks like this:

$arValues = array( 345 => \"jhdrfr\", 534 => \"jhdrffr\", 673 => \"jhrffr\", 234 => \"jfrhfr\" );

How

Answer 1

// 1 is the index of the first object to get
// NULL to get everything until the end
// true to preserve keys
$arValues = array_slice($arValues, 1, NULL, true);

Answer 2

reset( $a );
unset( $a[ key($a)]);

A bit more useful version:

// rewinds array's internal pointer to the first element
// and returns the value of the first array element. 
$value = reset( $a );

// returns the index element of the current array position
$key   = key( $a );

unset( $a[ $key ]);

Functions:

// returns value
function array_shift_assoc( &$arr ){
  $val = reset( $arr );
  unset( $arr[ key( $arr ) ] );
  return $val; 
}

// returns [ key, value ]
function array_shift_assoc_kv( &$arr ){
  $val = reset( $arr );
  $key = key( $arr );
  $ret = array( $key => $val );
  unset( $arr[ $key ] );
  return $ret; 
}

Answer 3

This works fine for me...

$array = array('1','2','3','4');

reset($array);
$key = key($array);
$value = $array[$key];
unset($array[$key]);

var_dump($key, $value, $array, current($array));

Output:

int(0) 
string(1) "1" 
array(3) { [1]=> string(1) "2" [2]=> string(1) "3" [3]=> string(1) "4" }
string(1) "2"

Answer 4

function array_shift_associative(&$arr){
    reset($arr);
    $return = array(key($arr)=>current($arr));
    unset($arr[key($arr)]);
    return $return; 
}

this function uses biziclop's method but returns a key=>value pair.