Online PHP editor | output for f6FQv

@ 2019-06-27T06:50:11Z

<?php

$array = [
            ["key" => 0, "value" => 25],
            ["key" => 1, "value" => 25],
            ["key" => 2, "value" => 25],
            ["key" => 3, "value" => 33],
            ["key" => 4, "value" => 45],
            ["key" => 5, "value" => 66],
            ["key" => 6, "value" => 66],
            ["key" => 7, "value" => 66],
            ["key" => 8, "value" => 66],
            ["key" => 9, "value" => 55],
        ];
$r = [];
$lastKey   = '';
foreach($array as $k => $v){ 
  if(in_array($v['value'], array_column($r, 'value'))){
    $lastKey = $v['key'];
  }else{
    if($lastKey && !in_array($lastKey, array_column($r, 'key'))){
        end($r);
        $r[] = [ 'key' => $lastKey, 'value' => $r[key($r)]['value']];
    }
    $r[]       = [ 'key' => $v['key'] , 'value' => $v['value'] ]; 
    $lastKey     = $v['key'];
  }
}
echo '<pre>';
print_r($r);

Output for 7.1.25 - 7.1.30, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: <pre>Array ( [0] => Array ( [key] => 0 [value] => 25 ) [1] => Array ( [key] => 2 [value] => 25 ) [2] => Array ( [key] => 3 [value] => 33 ) [3] => Array ( [key] => 4 [value] => 45 ) [4] => Array ( [key] => 5 [value] => 66 ) [5] => Array ( [key] => 8 [value] => 66 ) [6] => Array ( [key] => 9 [value] => 55 ) )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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