Check if value exists within an array of objects

Question

I am working on an API which receives a PHP object of $POST data. I am trying to check wether the 'smsPhoneNumber' inside customFields exists but not sure how to do this.

I am currently able to check for 'email' using:

if ( property_exists( $data, 'email' ) ) {
  return true;
}

Question: How to check if 'smsPhoneNumber' exists?

--

var_dump:

object(stdClass)[1515]
  public 'email' => string '[email protected]'
  public 'customFields' => 
    array (size=2)
      0 => 
        object(stdClass)[1512]
          public 'name' => string 'Firstname'
          public 'value' => string 'james' 
      1 => 
        object(stdClass)[1514]
          public 'name' => string 'smsPhoneNumber'
          public 'value' => string '077'

simplest way is do a foreach on $yourobj->customFields and check required property — Chetan Ameta
– Chetan Ameta, Commented Jul 13, 2018 at 12:28
Ya know, there is a second parameter in json_decode() .. look it up — tereško
– tereško, Commented Jul 13, 2018 at 12:40
@tereško, I mean, you could convert this to an array but it wouldn't change much about how you'd have to access these custom fields. — Devon Bessemer
– Devon Bessemer, Commented Jul 13, 2018 at 12:45
yeh it would be a bit easier if the objects in customFields were arrays, but a foreach iteration is likely your best solution regardless. — NappingRabbit
– NappingRabbit, Commented Jul 13, 2018 at 13:15

Devon Bessemer · Accepted Answer · 2018-07-13 12:35:50Z

1

You could use an array_filter to get the custom field you want.

$phoneFields = array_filter($data->customFields, function($field) {
    return $field->name === 'smsPhoneNumber';
});

This will only return objects in the array that have a name property equal to smsPhoneNumber.

if (!count($phoneFields)) {
    // Phone not found
}

// or

if ($phone = current($phoneFields)) {
    echo "The first phone number found is " . $phone->value;
}

edited Jul 13, 2018 at 12:35

answered Jul 13, 2018 at 12:29

Devon Bessemer

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Comments

mickmackusa · Accepted Answer · 2020-06-15 12:35:06Z

1

The drawback of using array_filter() to search for the subarray values is:

array_filter() will not stop once it finds a match; it will keep iterating even after a match is found until it reaches the end of the array.

You should use a technique that allows an early break/return.

I recommend a simple foreach() with a break.

$foundIndex = null;
foreach ($data->customFields as $index => $customFields) {
    if ($customFields->name === 'smsPhoneNumber') {
        $foundIndex = $index;
        // or $wasFound = true;
        // or $smsNumber = $customFields->value;
        break;
    }
}

This will prove to be very efficient and easy to read/maintain.

answered Jun 15, 2020 at 12:35

mickmackusa♦

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