check if value exist in each array multidimensional array - php

Question

i hava multidimensional array
<?php
$data = array(
array(
'name'=>'ahmed',
'job'=>'engineer',
'age'=>25,
'hobbies' => array('drawing','swimming','reading'),
'skills' => array('coding','fasting learning','teaching')
),
array(
'name'=>'Sara',
'job'=>'designer',
'age'=>19,
'skills'=>array('fast learning')
) ,
array(
'name'=>'Ali',
'age'=>25,
'city'=>'cairo'
),
array(
'name'=>'Hossam',
'job'=>'accountant',
'age'=>25,
'city'=>'zagazig'
),
array(
'name'=>'Esraa',
'job'=>'Designer',
'age'=>23,
'city'=>'zagazig',
'hobbies' => array('writing','reading'),
'skills' => array('coding','teaching')
),
);
i want count Arrays where city = "zagazig" or "cairo"
and echo Array Values
Example :
There is [ 1 ] people of City => [ cairo ] :
---------------- Result -----------------------
Name => Ali
Age => 25
City => cairo
if City !exist echo Values
Example :
*---------------- Invaild Data -------------
----------------------- First ---------------
Name => Sara
Job => designer
Age => 19
Skill => fast learning
----------------- Second ----------------
Name => ahmed
Job => engineer
Age => 25
-------------------- Hobbies ----------------
drawing
swimming
reading
-------------------- Skills ----------------
coding
fasting learning
teaching
but i don't know how to loop Multidimensional Array

Answer 1

Given that this is just a raw array, a simple if with foreach should suffice.
First, if the criteria is to get certain entries using city, just use a stripos to search;
$search_string = 'zagazig';
$results = array();
foreach($data as $value) {
if(
!empty($value['city']) &&
(stripos($value['city'], $search_string) !== false)
) {
$results[] = $value;
}
}
This checks if the entry has a city index, then just pushes that array inside a container $result. After gathering the results, just loop it like any normal array:
if(!empty($results)) {
echo 'Number of results: ' , count($results), '<br/> Result <hr/>';
foreach($results as $r) {
echo "
Name: {$r['name']}
Job: {$r['job']}
Age: {$r['age']} <br/>
";
echo !empty($r['hobbies']) ? '<br/>Hobbies: <br/>' . implode('<br/>', $r['hobbies']) : '';
}
}
Output
Of course you can use a <table> tag if you want, this is just an ugly example.
If you like something a little bit different, you can also use array_filter:
Here's an example of it (this also includes some searching inside hobbies and skills):
$search_string = 'coding';
$criteria = 'skills';
$results = array_filter($data, function($e) use ($search_string, $criteria) {
return (
!empty($e[$criteria]) &&
(!is_array($e[$criteria])
? (strpos($e[$criteria], $search_string) !== false)
: (in_array($search_string, $e[$criteria]))
)
);
});
Output

Answer 2

Use php foreach() like:
foreach (array_expression as $value)
{
statement
}
Foreach Documentation