Yaml.php 2.9 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697
  1. <?php
  2. /*
  3. * This file is part of the Symfony package.
  4. *
  5. * (c) Fabien Potencier <fabien@symfony.com>
  6. *
  7. * For the full copyright and license information, please view the LICENSE
  8. * file that was distributed with this source code.
  9. */
  10. namespace Symfony\Component\Yaml;
  11. use Symfony\Component\Yaml\Exception\ParseException;
  12. /**
  13. * Yaml offers convenience methods to load and dump YAML.
  14. *
  15. * @author Fabien Potencier <fabien@symfony.com>
  16. *
  17. * @final
  18. */
  19. class Yaml
  20. {
  21. public const DUMP_OBJECT = 1;
  22. public const PARSE_EXCEPTION_ON_INVALID_TYPE = 2;
  23. public const PARSE_OBJECT = 4;
  24. public const PARSE_OBJECT_FOR_MAP = 8;
  25. public const DUMP_EXCEPTION_ON_INVALID_TYPE = 16;
  26. public const PARSE_DATETIME = 32;
  27. public const DUMP_OBJECT_AS_MAP = 64;
  28. public const DUMP_MULTI_LINE_LITERAL_BLOCK = 128;
  29. public const PARSE_CONSTANT = 256;
  30. public const PARSE_CUSTOM_TAGS = 512;
  31. public const DUMP_EMPTY_ARRAY_AS_SEQUENCE = 1024;
  32. public const DUMP_NULL_AS_TILDE = 2048;
  33. public const DUMP_NUMERIC_KEY_AS_STRING = 4096;
  34. /**
  35. * Parses a YAML file into a PHP value.
  36. *
  37. * Usage:
  38. *
  39. * $array = Yaml::parseFile('config.yml');
  40. * print_r($array);
  41. *
  42. * @param string $filename The path to the YAML file to be parsed
  43. * @param int $flags A bit field of PARSE_* constants to customize the YAML parser behavior
  44. *
  45. * @throws ParseException If the file could not be read or the YAML is not valid
  46. */
  47. public static function parseFile(string $filename, int $flags = 0): mixed
  48. {
  49. $yaml = new Parser();
  50. return $yaml->parseFile($filename, $flags);
  51. }
  52. /**
  53. * Parses YAML into a PHP value.
  54. *
  55. * Usage:
  56. * <code>
  57. * $array = Yaml::parse(file_get_contents('config.yml'));
  58. * print_r($array);
  59. * </code>
  60. *
  61. * @param string $input A string containing YAML
  62. * @param int $flags A bit field of PARSE_* constants to customize the YAML parser behavior
  63. *
  64. * @throws ParseException If the YAML is not valid
  65. */
  66. public static function parse(string $input, int $flags = 0): mixed
  67. {
  68. $yaml = new Parser();
  69. return $yaml->parse($input, $flags);
  70. }
  71. /**
  72. * Dumps a PHP value to a YAML string.
  73. *
  74. * The dump method, when supplied with an array, will do its best
  75. * to convert the array into friendly YAML.
  76. *
  77. * @param mixed $input The PHP value
  78. * @param int $inline The level where you switch to inline YAML
  79. * @param int $indent The amount of spaces to use for indentation of nested nodes
  80. * @param int $flags A bit field of DUMP_* constants to customize the dumped YAML string
  81. */
  82. public static function dump(mixed $input, int $inline = 2, int $indent = 4, int $flags = 0): string
  83. {
  84. $yaml = new Dumper($indent);
  85. return $yaml->dump($input, $inline, 0, $flags);
  86. }
  87. }