Online PHP editor | output for 8LnSh

@ 2018-09-19T10:43:02Z

<?php
function array_del_invalid(&$a, $ikc = [], $ivc = []) {
  if(! empty($ikc) || ! empty($ivc)) {
    foreach ($a as $k => $v) {
      $treated_key = str_replace($ikc, '', $k);
      $treated_val = str_replace($ivc, '', $v);
      if($k !== $treated_key) {
        unset($a[$k]);
        $a[$treated_key] = $v;
      }
      if($v !== $treated_val) {
        $a[$treated_key] = $treated_val;
      }
    }
  }
}
$arr = [
  'a' => 'Letter A!',
  '`b`' => 'Letter B w/quotes...',
  ' c ' => 'Letter C w/spaces?',
  ' -_-`d`- _ - ' => 'Letter D w/all?!...'
];
$original_arr = $arr;
$invalid_keys_chars = ['`',' ','_','-'];
$invalid_vals_chars = ['!','?','.'];
array_del_invalid($arr, $invalid_keys_chars, $invalid_vals_chars);
var_export($arr);

// only keys replacement
$arr = $original_arr;
array_del_invalid($arr, $invalid_keys_chars);
var_export($arr);

Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 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 - 8.3.25, 8.4.1 - 8.4.12: array ( 'a' => 'Letter A', 'b' => 'Letter B w/quotes', 'c' => 'Letter C w/spaces', 'd' => 'Letter D w/all', )array ( 'a' => 'Letter A!', 'b' => 'Letter B w/quotes...', 'c' => 'Letter C w/spaces?', 'd' => 'Letter D w/all?!...', )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/8LnSh on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/8LnSh on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/8LnSh on line 2
Process exited with code 255.

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