How to check if value exists in multidimensional array with keys? [duplicate] - php

Question

This question already has answers here:
How to check if a specific value exists at a specific key in any subarray of a multidimensional array?
(17 answers)
Closed 3 years ago.
I have an array that looks like this:
$array = array(
array('name' => 'number1', 'number' => '0612345675'),
array('name' => 'number2', 'number' => '0634345675'),
array('name' => 'number3', 'number' => '0634378675')
);
Now I have this number: 0634345675.
How can I check If this number exists in the array $array?
I tried to do this:
if(!in_array('0634345675', $array)){
// insert into DB
}
But this keeps adding multiple of the same rows.
Does anyone knows how to check if this number exists in $array?
Full code:
foreach($DN as $number){ // $DN got ['0634345675', '0632545675', '0614342375']
if(!in_array($number, $array)){
// insert into DB
}
}

Answer 1

You have to use in_array() along with array_column()
<?php
$array = array(
array('name' => 'number1', 'number' => '0612345675'),
array('name' => 'number2', 'number' => '0634345675'),
array('name' => 'number3', 'number' => '0634378675')
);
$valueToFind = '0634345675';
if (in_array($valueToFind, array_column($array, 'number'))){
echo 'found';
}else{
echo 'not found';
}
Output:- https://3v4l.org/TUtSL
If you want to show that array too, then use array_search()
$key = array_search($valueToFind, array_column($array, 'number'));
if($key){
echo 'value found';
echo PHP_EOL;
echo "matched array is";
echo PHP_EOL;
print_r($array[$key]);
}
Output:-https://3v4l.org/Mc2cC
In case multiple match found:
$valueToFind = '0634378675';
$matchedArray = array();
foreach($array as $arr){
if($valueToFind == $arr['number']){
$matchedArray[] = $arr;
}
}
if( count($matchedArray) > 0){
echo "match found";
echo PHP_EOL;
print_r($matchedArray);
}
Output:- https://3v4l.org/p439T