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<?php |
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namespace League\JsonGuard; |
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/** |
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* @param string $string |
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* @param string $charset |
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* |
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* @return int |
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*/ |
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function strlen($string, $charset = 'UTF-8') |
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{ |
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if (function_exists('iconv_strlen')) { |
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return iconv_strlen($string, $charset); |
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} |
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if (function_exists('mb_strlen')) { |
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return mb_strlen($string, $charset); |
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} |
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if (function_exists('utf8_decode') && $charset === 'UTF-8') { |
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$string = utf8_decode($string); |
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} |
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return \strlen($string); |
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} |
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/** |
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* Returns the string representation of a value. |
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* |
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* @param mixed $value |
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* @return string |
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*/ |
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function as_string($value) |
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{ |
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100 |
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if (is_resource($value)) { |
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return '<RESOURCE>'; |
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} |
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98 |
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return (string) json_encode($value); |
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} |
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/** |
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* Get the properties matching $pattern from the $data. |
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* |
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* @param string $pattern |
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* @param array|object $data |
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* @return array |
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*/ |
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function properties_matching_pattern($pattern, $data) |
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{ |
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// If an object is supplied, extract an array of the property names. |
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if (is_object($data)) { |
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$data = array_keys(get_object_vars($data)); |
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} |
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return preg_grep(delimit_pattern($pattern), $data); |
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} |
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/** |
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* Delimit a regular expression pattern. |
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* |
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* The regular expression syntax used for JSON schema is ECMA 262, from Javascript, |
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* and does not use delimiters. Since the PCRE functions do, this function will |
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* delimit a pattern and escape the delimiter if found in the pattern. |
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* |
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* @see http://json-schema.org/latest/json-schema-validation.html#anchor6 |
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* @see http://php.net/manual/en/regexp.reference.delimiters.php |
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* |
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* @param string $pattern |
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* |
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* @return string |
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*/ |
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function delimit_pattern($pattern) |
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{ |
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return '/' . str_replace('/', '\\/', $pattern) . '/'; |
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} |
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/** |
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* Determines if the value is an integer or an integer that was cast to a string |
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* because it is larger than PHP_INT_MAX. |
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* |
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* @param mixed $value |
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* @return boolean |
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*/ |
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function is_json_integer($value) |
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{ |
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if (is_string($value) && \strlen($value) && $value[0] === '-') { |
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$value = substr($value, 1); |
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} |
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122 |
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return is_int($value) || (is_string($value) && ctype_digit($value) && bccomp($value, PHP_INT_MAX) === 1); |
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} |
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/** |
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* Determines if the value is a number. A number is a float, integer, or a number that was cast |
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* to a string because it is larger than PHP_INT_MAX. |
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* |
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* @param mixed $value |
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* |
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* @return boolean |
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*/ |
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function is_json_number($value) |
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{ |
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return is_float($value) || is_json_integer($value); |
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} |
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thephpleague /
json-guard
