删除数组PHP的某些部分

Question

I need to remove a certain key of my array since I'm creating a filter for my data.

Array(
   [0]=>Array
      (
        ['Column1'] => 'ABC'
        ['Column2'] => 'xxx'
      )
   [1]=>Array
      (
        ['Column1'] => 'XYZ'
        ['Column2'] => 'xxx'
      )
)

I want to remove the key (meaning the number 2) that has the value 'XYZ'. How can I remove it? I need to remove it because I am filtering the array that was thrown to me by another script and I need to remove the key. I tried using for loop but I do not know how to remove it.

for($z = 0; $z < count($array);$z++)
{
   if($array[$z]['Column1'] == 'XYZ'){
          // how do I remove the record [1] and all of its contents?
  }
}

Answer 1

Use unset()

for($z = 0; $z < count($array);$z++)
{
   if($array[$z]['Column1'] == 'XYZ'){
     unset($array[$z]);
  }
}

You can also do:

foreach($array as &$v) {
  if($v['Column1'] == 'XYZ') {
    unset($v);
  }
}

After using unset() on an array, and as long as you don't need to retain the index values, it is worth doing:

$array = array_values($array);

To reset the array index.