Question

$record_record contains:

Array
(
    [0] => Array
        (
            [id] => 252
            [origin] => laptop.me.
        )

    [1] => Array
        (
            [id] => 255
            [origin] => hello.me.
        )

    [2] => Array
        (
            [id] => 254
            [origin] => intel.me.
        ) 
)

I need to search if 255 is exist in the array. The code below didn’t work.

if (in_array('255', $record_record, true)) {
    echo "'255' found with strict check\n";
}
else {
     echo "nope\n";
} 

I had a feeling because it’s a nested array the function will not work. Help me please?

Answer 1

You need to do something like this:

<?php

  function id_exists ($array, $id, $strict = FALSE) {
    // Loop outer array
    foreach ($array as $inner) {
      // Make sure id is set, and compare it to the search value
      if (isset($inner['id']) && (($strict) ? $inner['id'] === $id : $inner['id'] == $id)) {
        // We found it
        return TRUE;
      }
    }
    // We didn't find it
    return FALSE;
  }

  if (id_exists($record_record, 255, true)) {
    echo "'255' found with strict check\n";
  } else {
    echo "nope\n";
  }