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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Polyfill\Php80;
  13  
  14  /**
  15   * @author Ion Bazan <ion.bazan@gmail.com>
  16   * @author Nico Oelgart <nicoswd@gmail.com>
  17   * @author Nicolas Grekas <p@tchwork.com>
  18   *
  19   * @internal
  20   */
  21  final class Php80
  22  {
  23      public static function fdiv(float $dividend, float $divisor): float
  24      {
  25          return @($dividend / $divisor);
  26      }
  27  
  28      public static function get_debug_type($value): string
  29      {
  30          switch (true) {
  31              case null === $value: return 'null';
  32              case \is_bool($value): return 'bool';
  33              case \is_string($value): return 'string';
  34              case \is_array($value): return 'array';
  35              case \is_int($value): return 'int';
  36              case \is_float($value): return 'float';
  37              case \is_object($value): break;
  38              case $value instanceof \__PHP_Incomplete_Class: return '__PHP_Incomplete_Class';
  39              default:
  40                  if (null === $type = @get_resource_type($value)) {
  41                      return 'unknown';
  42                  }
  43  
  44                  if ('Unknown' === $type) {
  45                      $type = 'closed';
  46                  }
  47  
  48                  return "resource ($type)";
  49          }
  50  
  51          $class = \get_class($value);
  52  
  53          if (false === strpos($class, '@')) {
  54              return $class;
  55          }
  56  
  57          return (get_parent_class($class) ?: key(class_implements($class)) ?: 'class').'@anonymous';
  58      }
  59  
  60      public static function get_resource_id($res): int
  61      {
  62          if (!\is_resource($res) && null === @get_resource_type($res)) {
  63              throw new \TypeError(sprintf('Argument 1 passed to get_resource_id() must be of the type resource, %s given', get_debug_type($res)));
  64          }
  65  
  66          return (int) $res;
  67      }
  68  
  69      public static function preg_last_error_msg(): string
  70      {
  71          switch (preg_last_error()) {
  72              case \PREG_INTERNAL_ERROR:
  73                  return 'Internal error';
  74              case \PREG_BAD_UTF8_ERROR:
  75                  return 'Malformed UTF-8 characters, possibly incorrectly encoded';
  76              case \PREG_BAD_UTF8_OFFSET_ERROR:
  77                  return 'The offset did not correspond to the beginning of a valid UTF-8 code point';
  78              case \PREG_BACKTRACK_LIMIT_ERROR:
  79                  return 'Backtrack limit exhausted';
  80              case \PREG_RECURSION_LIMIT_ERROR:
  81                  return 'Recursion limit exhausted';
  82              case \PREG_JIT_STACKLIMIT_ERROR:
  83                  return 'JIT stack limit exhausted';
  84              case \PREG_NO_ERROR:
  85                  return 'No error';
  86              default:
  87                  return 'Unknown error';
  88          }
  89      }
  90  
  91      public static function str_contains(string $haystack, string $needle): bool
  92      {
  93          return '' === $needle || false !== strpos($haystack, $needle);
  94      }
  95  
  96      public static function str_starts_with(string $haystack, string $needle): bool
  97      {
  98          return 0 === strncmp($haystack, $needle, \strlen($needle));
  99      }
 100  
 101      public static function str_ends_with(string $haystack, string $needle): bool
 102      {
 103          if ('' === $needle || $needle === $haystack) {
 104              return true;
 105          }
 106  
 107          if ('' === $haystack) {
 108              return false;
 109          }
 110  
 111          $needleLength = \strlen($needle);
 112  
 113          return $needleLength <= \strlen($haystack) && 0 === substr_compare($haystack, $needle, -$needleLength);
 114      }
 115  }