array_shift but preserve keys

Question

My array looks like this:

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

How

Answer 1

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; 
}