class/JSON.php
<?php declare(strict_types=1);
/*
Module: Document
Version: 2.01
Description: Multilingual Content Module with tags and lists with search functions
Author: Written by Simon Roberts aka. Wishcraft (simon@chronolabs.coop)
Owner: Chronolabs
License: See /docs - GPL 2.0
*/
/*
* @link https://pear.php.net/pepr/pepr-proposal-show.php?id=198
*/
/**
* Marker constant for ServicesJSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_SLICE', 1);
/**
* Marker constant for ServicesJSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_IN_STR', 2);
/**
* Marker constant for ServicesJSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_IN_ARR', 3);
/**
* Marker constant for ServicesJSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_IN_OBJ', 4);
/**
* Marker constant for ServicesJSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_IN_CMT', 5);
/**
* Behavior switch for ServicesJSON::decode()
*/
define('SERVICES_JSON_LOOSE_TYPE', 16);
/**
* Behavior switch for ServicesJSON::decode()
*/
define('SERVICES_JSON_SUPPRESS_ERRORS', 32);
/**
* Converts to and from JSON format.
*
* Brief example of use:
*
* <code>
* // create a new instance of ServicesJSON
* $json = new ServicesJSON();
*
* // convert a complexe value to JSON notation, and send it to the browser
* $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4)));
* $output = $json->encode($value);
*
* print($output);
* // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
*
* // accept incoming POST data, assumed to be in JSON notation
* $input = file_get_contents('php://input', 1000000);
* $value = $json->decode($input);
* </code>
*/
class ServicesJSON
{
/**
* constructs a new JSON instance
*
* @param int $use object behavior flags; combine with boolean-OR
*
* possible values:
* - SERVICES_JSON_LOOSE_TYPE: loose typing.
* "{...}" syntax creates associative arrays
* instead of objects in decode().
* - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
* Values which can't be encoded (e.g. resources)
* appear as NULL instead of throwing errors.
* By default, a deeply-nested resource will
* bubble up with an error, so all return values
* from encode() should be checked with isError()
*/
public function __construct($use = 0)
{
$this->use = $use;
}
/**
* convert a string from one UTF-16 char to one UTF-8 char
*
* Normally should be handled by mb_convert_encoding, but
* provides a slower PHP-only method for installations
* that lack the multibye string extension.
*
* @param string $utf16 UTF-16 character
* @return string UTF-8 character
*/
public function utf162utf8($utf16): string
{
// oh please oh please oh please oh please oh please
if (function_exists('mb_convert_encoding')) {
return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
}
$bytes = (ord($utf16[0]) << 8) | ord($utf16[1]);
switch (true) {
case ((0x7F & $bytes) == $bytes):
// this case should never be reached, because we are in ASCII range
// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr(0x7F & $bytes);
case (0x07FF & $bytes) == $bytes:
// return a 2-byte UTF-8 character
// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr(0xC0 | (($bytes >> 6) & 0x1F)) . chr(0x80 | ($bytes & 0x3F));
case (0xFFFF & $bytes) == $bytes:
// return a 3-byte UTF-8 character
// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr(0xE0 | (($bytes >> 12) & 0x0F)) . chr(0x80 | (($bytes >> 6) & 0x3F)) . chr(0x80 | ($bytes & 0x3F));
}
// ignoring UTF-32 for now, sorry
return '';
}
/**
* convert a string from one UTF-8 char to one UTF-16 char
*
* Normally should be handled by mb_convert_encoding, but
* provides a slower PHP-only method for installations
* that lack the multibye string extension.
*
* @param string $utf8 UTF-8 character
* @return string UTF-16 character
*/
public function utf82utf16($utf8): string
{
// oh please oh please oh please oh please oh please
if (function_exists('mb_convert_encoding')) {
return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
}
switch (mb_strlen($utf8)) {
case 1:
// this case should never be reached, because we are in ASCII range
// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return $utf8;
case 2:
// return a UTF-16 character from a 2-byte UTF-8 char
// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr(0x07 & (ord($utf8[0]) >> 2)) . chr((0xC0 & (ord($utf8[0]) << 6)) | (0x3F & ord($utf8[1])));
case 3:
// return a UTF-16 character from a 3-byte UTF-8 char
// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr((0xF0 & (ord($utf8[0]) << 4)) | (0x0F & (ord($utf8[1]) >> 2))) . chr((0xC0 & (ord($utf8[1]) << 6)) | (0x7F & ord($utf8[2])));
}
// ignoring UTF-32 for now, sorry
return '';
}
/**
* encodes an arbitrary variable into JSON format (and sends JSON Header)
*
* @param mixed $var any number, boolean, string, array, or object to be encoded.
* see argument 1 to ServicesJSON() above for array-parsing behavior.
* if var is a strng, note that encode() always expects it
* to be in ASCII or UTF-8 format!
*
* @return mixed JSON string representation of input var or an error if a problem occurs
*/
public function encode($var)
{
header('Document-type: application/json');
return $this->encodeUnsafe($var);
}
/**
* encodes an arbitrary variable into JSON format without JSON Header - warning - may allow CSS!!!!)
*
* @param mixed $var any number, boolean, string, array, or object to be encoded.
* see argument 1 to ServicesJSON() above for array-parsing behavior.
* if var is a strng, note that encode() always expects it
* to be in ASCII or UTF-8 format!
*
* @return mixed JSON string representation of input var or an error if a problem occurs
*/
public function encodeUnsafe($var)
{
// see bug #16908 - regarding numeric locale printing
$lc = setlocale(LC_NUMERIC, 0);
setlocale(LC_NUMERIC, 'C');
$ret = $this->_encode($var);
setlocale(LC_NUMERIC, $lc);
return $ret;
}
/**
* PRIVATE CODE that does the work of encodes an arbitrary variable into JSON format
*
* @param mixed $var any number, boolean, string, array, or object to be encoded.
* see argument 1 to ServicesJSON() above for array-parsing behavior.
* if var is a strng, note that encode() always expects it
* to be in ASCII or UTF-8 format!
*
* @return mixed JSON string representation of input var or an error if a problem occurs
*/
public function _encode($var)
{
switch (gettype($var)) {
case 'boolean':
return $var ? 'true' : 'false';
case 'NULL':
return 'null';
case 'integer':
return (int)$var;
case 'double':
case 'float':
return (float)$var;
case 'string':
// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
$ascii = '';
$strlen_var = mb_strlen($var);
/*
* Iterate over every character in the string,
* escaping with a slash or encoding to UTF-8 where necessary
*/
for ($c = 0; $c < $strlen_var; ++$c) {
$ord_var_c = ord($var[$c]);
switch (true) {
case 0x08 == $ord_var_c:
$ascii .= '\b';
break;
case 0x09 == $ord_var_c:
$ascii .= '\t';
break;
case 0x0A == $ord_var_c:
$ascii .= '\n';
break;
case 0x0C == $ord_var_c:
$ascii .= '\f';
break;
case 0x0D == $ord_var_c:
$ascii .= '\r';
break;
case 0x22 == $ord_var_c:
case 0x2F == $ord_var_c:
case 0x5C == $ord_var_c:
// double quote, slash, slosh
$ascii .= '\\' . $var[$c];
break;
case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
// characters U-00000000 - U-0000007F (same as ASCII)
$ascii .= $var[$c];
break;
case (0xC0 == ($ord_var_c & 0xE0)):
// characters U-00000080 - U-000007FF, mask 110SONGLIST
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
if ($c + 1 >= $strlen_var) {
++$c;
$ascii .= '?';
break;
}
$char = pack('C*', $ord_var_c, ord($var[$c + 1]));
++$c;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
case (0xE0 == ($ord_var_c & 0xF0)):
if ($c + 2 >= $strlen_var) {
$c += 2;
$ascii .= '?';
break;
}
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$char = pack('C*', $ord_var_c, @ord($var[$c + 1]), @ord($var[$c + 2]));
$c += 2;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
case (0xF0 == ($ord_var_c & 0xF8)):
if ($c + 3 >= $strlen_var) {
$c += 3;
$ascii .= '?';
break;
}
// characters U-00010000 - U-001FFFFF, mask 11110XXX
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$char = pack('C*', $ord_var_c, ord($var[$c + 1]), ord($var[$c + 2]), ord($var[$c + 3]));
$c += 3;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
case (0xF8 == ($ord_var_c & 0xFC)):
// characters U-00200000 - U-03FFFFFF, mask 111110XX
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
if ($c + 4 >= $strlen_var) {
$c += 4;
$ascii .= '?';
break;
}
$char = pack('C*', $ord_var_c, ord($var[$c + 1]), ord($var[$c + 2]), ord($var[$c + 3]), ord($var[$c + 4]));
$c += 4;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
case (0xFC == ($ord_var_c & 0xFE)):
if ($c + 5 >= $strlen_var) {
$c += 5;
$ascii .= '?';
break;
}
// characters U-04000000 - U-7FFFFFFF, mask 1111110X
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$char = pack('C*', $ord_var_c, ord($var[$c + 1]), ord($var[$c + 2]), ord($var[$c + 3]), ord($var[$c + 4]), ord($var[$c + 5]));
$c += 5;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
}
}
return '"' . $ascii . '"';
case 'array':
/*
* As per JSON spec if any array key is not an integer
* we must treat the the whole array as an object. We
* also try to catch a sparsely populated associative
* array with numeric keys here because some JS engines
* will create an array with empty indexes up to
* max_index which can cause memory issues and because
* the keys, which may be relevant, will be remapped
* otherwise.
*
* As per the ECMA and JSON specification an object may
* have any string as a property. Unfortunately due to
* a hole in the ECMA specification if the key is a
* ECMA reserved word or starts with a digit the
* parameter is only accessible using ECMAScript's
* bracket notation.
*/
// treat as a JSON object
if (is_array($var) && count($var) && (array_keys($var) !== range(0, count($var) - 1))) {
$properties = array_map([$this, 'name_value'], array_keys($var), array_values($var));
foreach ($properties as $property) {
if ($this->isError($property)) {
return $property;
}
}
return '{' . implode(',', $properties) . '}';
}
// treat it like a regular array
$elements = array_map([$this, '_encode'], $var);
foreach ($elements as $element) {
if ($this->isError($element)) {
return $element;
}
}
return '[' . implode(',', $elements) . ']';
case 'object':
$vars = get_object_vars($var);
$properties = array_map([$this, 'name_value'], array_keys($vars), array_values($vars));
foreach ($properties as $property) {
if ($this->isError($property)) {
return $property;
}
}
return '{' . implode(',', $properties) . '}';
default:
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS) ? 'null' : new ServicesJSON_Error(gettype($var) . ' can not be encoded as JSON string');
}
}
/**
* array-walking function for use in generating JSON-formatted name-value pairs
*
* @param string $name name of key to use
* @param mixed $value reference to an array element to be encoded
*
* @return string JSON-formatted name-value pair, like '"name":value'
*/
public function name_value($name, $value)
{
$encoded_value = $this->_encode($value);
if ($this->isError($encoded_value)) {
return $encoded_value;
}
return $this->_encode((string)$name) . ':' . $encoded_value;
}
/**
* reduce a string by removing leading and trailing comments and whitespace
*
* @param string $str string value to strip of comments and whitespace
*
* @return string string value stripped of comments and whitespace
*/
public function reduce_string($str): string
{
$str = preg_replace(
[
// eliminate single line comments in '// ...' form
'#^\s*//(.+)$#m',
// eliminate multi-line comments in '/* ... */' form, at start of string
'#^\s*/\*(.+)\*/#Us',
// eliminate multi-line comments in '/* ... */' form, at end of string
'#/\*(.+)\*/\s*$#Us',
],
'',
$str
);
// eliminate extraneous space
return trim($str);
}
/**
* decodes a JSON string into appropriate variable
*
* @param string $str JSON-formatted string
*
* @return array|bool|float|int|\stdClass|string|void|null number, boolean, string, array, or object
* corresponding to given JSON input string.
* See argument 1 to ServicesJSON() above for object-output behavior.
* Note that decode() always returns strings
* in ASCII or UTF-8 format!
*/
public function decode($str)
{
$str = $this->reduce_string($str);
switch (mb_strtolower($str)) {
case 'true':
return true;
case 'false':
return false;
case 'null':
return null;
default:
$m = [];
if (is_numeric($str)) {
// Lookie-loo, it's a number
// This would work on its own, but I'm trying to be
// good about returning integers where appropriate:
// return (float)$str;
// Return float or int, as appropriate
return ((float)$str == (int)$str) ? (int)$str : (float)$str;
}
if (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) {
// STRINGS RETURNED IN UTF-8 FORMAT
$delim = mb_substr($str, 0, 1);
$chrs = mb_substr($str, 1, -1);
$utf8 = '';
$strlen_chrs = mb_strlen($chrs);
for ($c = 0; $c < $strlen_chrs; ++$c) {
$substr_chrs_c_2 = mb_substr($chrs, $c, 2);
$ord_chrs_c = ord($chrs[$c]);
switch (true) {
case '\b' === $substr_chrs_c_2:
$utf8 .= chr(0x08);
++$c;
break;
case '\t' === $substr_chrs_c_2:
$utf8 .= chr(0x09);
++$c;
break;
case '\n' === $substr_chrs_c_2:
$utf8 .= chr(0x0A);
++$c;
break;
case '\f' === $substr_chrs_c_2:
$utf8 .= chr(0x0C);
++$c;
break;
case '\r' === $substr_chrs_c_2:
$utf8 .= chr(0x0D);
++$c;
break;
case '\\"' === $substr_chrs_c_2:
case '\\\'' === $substr_chrs_c_2:
case '\\\\' === $substr_chrs_c_2:
case '\\/' === $substr_chrs_c_2:
if (('"' === $delim && '\\\'' !== $substr_chrs_c_2)
|| ("'" === $delim && '\\"' !== $substr_chrs_c_2)) {
$utf8 .= $chrs[++$c];
}
break;
case preg_match('/\\\u[0-9A-F]{4}/i', mb_substr($chrs, $c, 6)):
// single, escaped unicode character
$utf16 = chr(hexdec(mb_substr($chrs, $c + 2, 2))) . chr(hexdec(mb_substr($chrs, $c + 4, 2)));
$utf8 .= $this->utf162utf8($utf16);
$c += 5;
break;
case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
$utf8 .= $chrs[$c];
break;
case 0xC0 == ($ord_chrs_c & 0xE0):
// characters U-00000080 - U-000007FF, mask 110SONGLIST
//see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$utf8 .= mb_substr($chrs, $c, 2);
++$c;
break;
case 0xE0 == ($ord_chrs_c & 0xF0):
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$utf8 .= mb_substr($chrs, $c, 3);
$c += 2;
break;
case 0xF0 == ($ord_chrs_c & 0xF8):
// characters U-00010000 - U-001FFFFF, mask 11110XXX
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$utf8 .= mb_substr($chrs, $c, 4);
$c += 3;
break;
case 0xF8 == ($ord_chrs_c & 0xFC):
// characters U-00200000 - U-03FFFFFF, mask 111110XX
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$utf8 .= mb_substr($chrs, $c, 5);
$c += 4;
break;
case 0xFC == ($ord_chrs_c & 0xFE):
// characters U-04000000 - U-7FFFFFFF, mask 1111110X
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$utf8 .= mb_substr($chrs, $c, 6);
$c += 5;
break;
}
}
return $utf8;
}
if (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) {
// array, or object notation
if ('[' === $str[0]) {
$stk = [SERVICES_JSON_IN_ARR];
$arr = [];
} elseif ($this->use & SERVICES_JSON_LOOSE_TYPE) {
$stk = [SERVICES_JSON_IN_OBJ];
$obj = [];
} else {
$stk = [SERVICES_JSON_IN_OBJ];
$obj = new stdClass();
}
array_push(
$stk,
[
'what' => SERVICES_JSON_SLICE,
'where' => 0,
'delim' => false,
]
);
$chrs = mb_substr($str, 1, -1);
$chrs = $this->reduce_string($chrs);
if ('' == $chrs) {
if (SERVICES_JSON_IN_ARR == reset($stk)) {
return $arr;
}
return $obj;
}
//print("\nparsing {$chrs}\n");
$strlen_chrs = mb_strlen($chrs);
for ($c = 0; $c <= $strlen_chrs; ++$c) {
$top = end($stk);
$substr_chrs_c_2 = mb_substr($chrs, $c, 2);
if (($c == $strlen_chrs) || ((',' === $chrs[$c]) && (SERVICES_JSON_SLICE == $top['what']))) {
// found a comma that is not inside a string, array, etc.,
// OR we've reached the end of the character list
$slice = mb_substr($chrs, $top['where'], $c - $top['where']);
array_push($stk, ['what' => SERVICES_JSON_SLICE, 'where' => $c + 1, 'delim' => false]);
//print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
if (SERVICES_JSON_IN_ARR == reset($stk)) {
// we are in an array, so just push an element onto the stack
$arr[] = $this->decode($slice);
} elseif (SERVICES_JSON_IN_OBJ == reset($stk)) {
// we are in an object, so figure
// out the property name and set an
// element in an associative array,
// for now
$parts = [];
if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
// "name":value pair
$key = $this->decode($parts[1]);
$val = $this->decode($parts[2]);
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
$obj[$key] = $val;
} else {
$obj->$key = $val;
}
} elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
// name:value pair, where name is unquoted
$key = $parts[1];
$val = $this->decode($parts[2]);
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
$obj[$key] = $val;
} else {
$obj->$key = $val;
}
}
}
} elseif ((('"' === $chrs[$c]) || ("'" === $chrs[$c])) && (SERVICES_JSON_IN_STR != $top['what'])) {
// found a quote, and we are not inside a string
array_push($stk, ['what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs[$c]]);
//print("Found start of string at {$c}\n");
} elseif (($chrs[$c] == $top['delim'])
&& (SERVICES_JSON_IN_STR == $top['what'])
&& (1 != (mb_strlen(mb_substr($chrs, 0, $c)) - mb_strlen(rtrim(mb_substr($chrs, 0, $c), '\\'))) % 2)) {
// found a quote, we're in a string, and it's not escaped
// we know that it's not escaped becase there is _not_ an
// odd number of backslashes at the end of the string so far
array_pop($stk);
//print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n");
} elseif (('[' === $chrs[$c])
&& in_array($top['what'], [SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ], true)) {
// found a left-bracket, and we are in an array, object, or slice
array_push($stk, ['what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false]);
//print("Found start of array at {$c}\n");
} elseif ((']' === $chrs[$c]) && (SERVICES_JSON_IN_ARR == $top['what'])) {
// found a right-bracket, and we're in an array
array_pop($stk);
//print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
} elseif (('{' === $chrs[$c])
&& in_array($top['what'], [SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ], true)) {
// found a left-brace, and we are in an array, object, or slice
array_push($stk, ['what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false]);
//print("Found start of object at {$c}\n");
} elseif (('}' === $chrs[$c]) && (SERVICES_JSON_IN_OBJ == $top['what'])) {
// found a right-brace, and we're in an object
array_pop($stk);
//print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
} elseif (('/*' === $substr_chrs_c_2)
&& in_array($top['what'], [SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ], true)) {
// found a comment start, and we are in an array, object, or slice
array_push($stk, ['what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false]);
++$c;
//print("Found start of comment at {$c}\n");
} elseif (('*/' === $substr_chrs_c_2) && (SERVICES_JSON_IN_CMT == $top['what'])) {
// found a comment end, and we're in one now
array_pop($stk);
++$c;
for ($i = $top['where']; $i <= $c; ++$i) {
$chrs = substr_replace($chrs, ' ', $i, 1);
}
//print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
}
}
if (SERVICES_JSON_IN_ARR == reset($stk)) {
return $arr;
}
if (SERVICES_JSON_IN_OBJ == reset($stk)) {
return $obj;
}
}
}
}
/**
* @param $data
* @param null $code
* @return bool
* @todo Ultimately, this should just call PEAR::isError()
*/
public function isError($data, $code = null): bool
{
if (class_exists('pear')) {
return PEAR::isError($data, $code);
}
if (is_object($data)
&& ($data instanceof \services_json_error
|| $data instanceof \services_json_error)) {
return true;
}
return false;
}
}
if (class_exists('PEAR_Error')) {
/**
* Class ServicesJSON_Error
*/
class ServicesJSON_Error extends PEAR_Error
{
/**
* ServicesJSON_Error constructor.
* @param string $message
* @param null $code
* @param null $mode
* @param null $options
* @param null $userinfo
*/
public function __construct(
$message = 'unknown error',
$code = null,
$mode = null,
$options = null,
$userinfo = null
) {
parent::__construct($message, $code, $mode, $options, $userinfo);
}
}
} else {
/**
* @todo Ultimately, this class shall be descended from PEAR_Error
*/
class ServicesJSON_Error
{
/**
* ServicesJSON_Error constructor.
* @param string $message
* @param null $code
* @param null $mode
* @param null $options
* @param null $userinfo
*/
public function __construct(
$message = 'unknown error',
$code = null,
$mode = null,
$options = null,
$userinfo = null
) {
}
}
}