Search number in array - php

Question

$record_record contains:
Array
(
[0] => Array
(
[id] => 252
[origin] => laptop.me.
)
[1] => Array
(
[id] => 255
[origin] => hello.me.
)
[2] => Array
(
[id] => 254
[origin] => intel.me.
)
)
I need to search if 255 is exist in the array. The code below didn't work.
if (in_array('255', $record_record, true)) {
echo "'255' found with strict check\n";
}
else {
echo "nope\n";
}
I had a feeling because it's a nested array the function will not work. Help me please?

Answer 1

You need to do something like this:
<?php
function id_exists ($array, $id, $strict = FALSE) {
// Loop outer array
foreach ($array as $inner) {
// Make sure id is set, and compare it to the search value
if (isset($inner['id']) && (($strict) ? $inner['id'] === $id : $inner['id'] == $id)) {
// We found it
return TRUE;
}
}
// We didn't find it
return FALSE;
}
if (id_exists($record_record, 255, true)) {
echo "'255' found with strict check\n";
} else {
echo "nope\n";
}

Answer 2

Do something like :
foreach($record_record as $sub_array){
if (in_array('255', $sub_array, true)) {
echo "'255' found with strict check\n";
}
else {
echo "nope\n";
}
}

Answer 3

You'll need a recursive function for that. From elusive:
function in_array_r($needle, $haystack, $strict = true) {
foreach ($haystack as $item) {
if (($strict ? $item === $needle : $item == $needle) || (is_array($item) && in_array_r($needle, $item, $strict))) {
return true;
}
}
return false;
}
Or, if your array structure will never change, just write a simple loop:
function in_2dimensional_array($needle, $haystack, $strict = true){
foreach ($haystack as $item) {
if (in_array($needle, $haystack, true)) {
return true;
}
}
return false;
}

Answer 4

Hacky solution. Someone else will post a nice one using array_map or something similar.
function in_nested_array($val, $arr)
{
$matched = false;
foreach ($arr AS $ar)
{
if (in_array($val, $ar, true)
{
$matched = true;
break;
}
}
return $matched;
}
if (in_nested_array(255, $record_record))
{
// partay
}

Answer 5

<?php
foreach($record_record as $record) {
$key = array_search('255', $record);
if ($key) {
echo "'255' found with strict check\n";
}
}
?>