Merge two arrays and selected checkbox in PHP - php

Question

First Array Output:
print_r($categories);
Array
(
[1] => Accounting & Financial
[2] => Advertising Services
[3] => Awards & Incentives
[4] => Business Consultants
[5] => Career Services
[6] => Creative Services
[7] => Data Management
[8] => Distributors & Agents
)
Second array Output:
print_r($Service_Provider_Id['Category']);
Array
(
[0] => Array
(
[id] => 1
[category] => Accounting & Financial
)
[1] => Array
(
[id] => 2
[category] => Advertising Services
)
)
My Below code showing all checkbox base on first array
<?phpforeach ($categories as $key => $value) { ?>
<div class="checkboxes-div">
<input type="checkbox" id="CategoryCategory<?php echo $key; ?>" value="<?php echo $key?>" name="data[Category][Category][]">
<label class="selected" for="CategoryCategory<?php echo $key; ?>">
<?php echo $value; ?>
</label>
</div>
<?php } ?>
if second array category's key value match with first array value so i want to selected checkbox

Answer 1

since in_array() will not work in multidimensional array you have to use two foreach loop. so try this
<?php
$categories=Array
(
"1" => "Accounting & Financial",
"2" => "Advertising Services",
"3" => "Awards & Incentives",
"4" => "Business Consultants",
"5" => "Career Services",
"6" => "Creative Services",
"7" => "Data Management",
"8" => "Distributors & Agents"
) ;
$Service_Provider_Id['Category'] = Array
(
"0" => Array
(
"id" => "1" ,
"category" => "Accounting & Financial"
),
"1" => Array
(
"id" => "2",
"category" => "Advertising Services"
)
);
?>
<?php foreach ($categories as $key => $value) { ?>
<div class="checkboxes-div">
<input type="checkbox" id="CategoryCategory<?php echo $key; ?>" value="<?php echo $key?>" name="data[Category][Category][]"
<?php foreach ($Service_Provider_Id['Category'] as $keys => $values) { foreach ($values as $keys2 => $values2) { if(in_array($value,$Service_Provider_Id['Category'][$keys])) { ?> checked <?php } } } ?> >
<label class="selected" for="CategoryCategory<?php echo $value; ?>">
<?php echo $value; ?>
</label>
</div>
<?php } ?>

Answer 2

thing is you want to search an element in a multi dimensional array, so you must use a function for this. Try the code below
function ArraySearchRecursive($Needle, $Haystack, $NeedleKey = "", $Strict = false, $Path = array()) {
if (!is_array($Haystack))
return false;
foreach ($Haystack as $Key => $Val) {
if (is_array($Val) &&
$SubPath = ArraySearchRecursive($Needle, $Val, $NeedleKey, $Strict, $Path)) {
$Path = array_merge($Path, Array($Key), $SubPath);
return $Path;
} elseif ((!$Strict && $Val == $Needle &&
$Key == (strlen($NeedleKey) > 0 ? $NeedleKey : $Key)) ||
($Strict && $Val === $Needle &&
$Key == (strlen($NeedleKey) > 0 ? $NeedleKey : $Key))) {
$Path[] = $Key;
return $Path;
}
}
return false;
}
and then
<?php foreach ($categories as $key => $value) { ?>
<div class="checkboxes-div">
<input type="checkbox" id="CategoryCategory<?php echo $key; ?>" value="<?php echo $key; ?>" <?php if (ArraySearchRecursive($value, $Service_Provider_Id['Category'])) { ?> checked <?php } ?> name="data[Category][Category][]">
<label class="selected" for="CategoryCategory<?php echo $key; ?>">
<?php echo $value; ?>
</label>
</div>
<?php } ?>
This works. I personally tried it.