Search value in array from comma separated value in PHP - php

Question

I have following array
Array
(
[0] => Array
(
[data] => PHP
[attribs] => Array
(
)
[xml_base] =>
[xml_base_explicit] =>
[xml_lang] =>
)
[1] => Array
(
[data] => Wordpress
[attribs] => Array
(
)
[xml_base] =>
[xml_base_explicit] =>
[xml_lang] =>
)
)
one varialbe like $var = 'Php, Joomla';
I have tried following but not working
$key = in_multiarray('PHP', $array,"data");
function in_multiarray($elem, $array,$field)
{
$top = sizeof($array) - 1;
$bottom = 0;
while($bottom <= $top)
{
if($array[$bottom][$field] == $elem)
return true;
else
if(is_array($array[$bottom][$field]))
if(in_multiarray($elem, ($array[$bottom][$field])))
return true;
$bottom++;
}
return false;
}
so want to check if any value in $var is exists in array(case insensitive)
How can i do it without loop?

Answer 1

This should work for you:
(Put a few comments in the code the explain whats goning on)
<?php
//Array to search in
$array = array(
array(
"data" => "PHP",
"attribs" => array(),
"xml_base" => "",
"xml_base_explicit" => "",
"xml_lang" => ""
),
array(
"data" => "Wordpress",
"attribs" => array(),
"xml_base" => "",
"xml_base_explicit" => "",
"xml_lang" => "Joomla"
)
);
//Values to search
$var = "Php, Joomla";
//trim and strtolower all search values and put them in a array
$search = array_map(function($value) {
return trim(strtolower($value));
}, explode(",", $var));
//function to put all non array values into lowercase
function tolower($value) {
if(is_array($value))
return array_map("tolower", $value);
else
return strtolower($value);
}
//Search needle in haystack
function in_array_r($needle, $haystack, $strict = false) {
foreach ($haystack as $item) {
if (($strict ? $item === $needle : $item == $needle) || (is_array($item) && in_array_r($needle, $item, $strict))) {
return true;
}
}
return false;
}
//Search ever value in array
foreach($search as $value) {
if(in_array_r($value, array_map("tolower", array_values($array))))
echo $value . " found<br />";
}
?>
Output:
php found
joomla found

Answer 2

to my understanding , you are trying to pass the string ex : 'php' and the key : 'data' of the element .
so your key can hold a single value or an array .
$key = in_multiarray("php", $array,"data");
var_dump($key);
function in_multiarray($elem, $array,$field)
{
$top = sizeof($array) - 1;
$bottom = 0;
while($bottom <= $top)
{
if(is_array($array[$bottom][$field]))
{
foreach($array[$bottom][$field] as $value)
{
if(strtolower(trim($value)) == strtolower(trim($elem)))
{
return true;
}
}
}
else if(strtolower(trim($array[$bottom][$field])) == strtolower(trim($elem)))
{
return true;
}
$bottom++;
}
return false;
}