array_diff
Some of the versions do not have this function.
I try to write it myself.
You may refer to my script below
function array_fill_keys($array, $values) {
if(is_array($array)) {
foreach($array as $key => $value) {
$arraydisplay[$array[$key]] = $values;
}
}
return $arraydisplay;
}
array_fill_keys
(PHP 5 >= 5.2.0)
array_fill_keys — Preenche um array com valores, especificando chaves
Descrição
Preenche um array com o
valor do parâmetro value, usando os
valores do array keys como chaves.
Parâmetros
-
keys -
Array de valores que serão usados como chaves. Valores ilegais para chaves serão convertidos para string.
-
value -
Valor para usar no preenchimento
Valor Retornado
Retorna o array preenchido
Exemplos
Exemplo #1 Exemplo da array_fill_keys()
<?php
$keys = array('foo', 5, 10, 'bar');
$a = array_fill_keys($keys, 'banana');
print_r($a);
?>
O exemplo acima irá imprimir:
Array
(
[foo] => banana
[5] => banana
[10] => banana
[bar] => banana
)
Veja Também
- array_fill() - Preenche um array com valores
- array_combine() - Cria um array usando um array para chaves e outro para valores
add a note
User Contributed Notes
array_fill_keys - [6 notes]
bananasims at hotmail dot com ¶
6 years ago
sergli at nigma dot ru ¶
11 months ago
<?php
$a = array("1");
var_dump(array_fill_keys($a, "test"));
?>
array(1) {
[1]=>
string(4) "test"
}
now string key "1" become an integer value 1, be careful.
matrebatre ¶
4 years ago
This function does the same as:
<?php
$array = array_combine($keys,array_fill(0,count($keys),$value));
?>
phydeaux ¶
5 years ago
Scratchy's version still doesn't work like the definition describes. Here's one that can take a mixed variable as the second parameter, defaulting to an empty string if it's not specified. Don't know if this is exactly how the function works in later versions but it's at least a lot closer.
function array_fill_keys($target, $value = '') {
if(is_array($target)) {
foreach($target as $key => $val) {
$filledArray[$val] = is_array($value) ? $value[$key] : $value;
}
}
return $filledArray;
}
This works for either strings or numerics, so if we have
$arr1 = array(0 => 'abc', 1 => 'def');
$arr2 = array(0 => 452, 1 => 128);
$arr3 = array(0 => 'foo', 1 => 'bar');
then
array_fill_keys($arr1,$arr2)
returns: [abc] => 452, [def] => 128
array_fill_keys($arr1,0)
returns: [abc] => 0, [def] => 0
array_fill_keys($arr2,$arr3)
returns: [452] => foo, [128] => bar
array_fill_keys($arr3,'BLAH')
returns: [foo] => BLAH, [bar] => BLAH
and array_fill_keys($arr1)
returns: [abc] =>, [def] =>
atul dot kr_singh at hotmail dot com ¶
4 months ago
If an associative array is used as the second parameter of array_fill_keys, then the associative array will be appended in all the values of the first array.
e.g.
<?php
$array1 = array(
"a" => "first",
"b" => "second",
"c" => "something",
"red"
);
$array2 = array(
"a" => "first",
"b" => "something",
"letsc"
);
print_r(array_fill_keys($array1, $array2));
?>
The output will be
Array(
[first] => Array(
[a] => first,
[b] => something,
[0] => letsc
),
[second] => Array(
[a] => first,
[b] => something,
[0] => letsc
),
[something] => Array(
[a] => first,
[b] => something,
[0] => letsc
),
[red] => Array(
[a] => first,
[b] => something,
[0] => letsc
)
)
Scratchy ¶
5 years ago
RE: bananasims at hotmail dot com
I also needed a work around to not having a new version of PHP and wanting my own keys. bananasims code doesn't like having an array as the second parameter...
Here's a slightly modified version than can handle 2 arrays as inputs:
//we want these values to be keys
$arr1 = (0 => "abc", 1 => "def");
/we want these values to be values
$arr2 = (0 => 452, 1 => 128);
function array_fill_keys($keyArray, $valueArray) {
if(is_array($keyArray)) {
foreach($keyArray as $key => $value) {
$filledArray[$value] = $valueArray[$key];
}
}
return $filledArray;
}
array_fill_keys($arr1, $arr2);
returns:
abc => 452, def =>128