JSON_UNESCAPED_SLASHES (int) Don't escape /. However, if we pass it into preg_replace and remove all non-alphanumeric characters, we are left with the following: As you can see, all of the special characters have been removed. The PHP string above contains an asterisk, a hyphen, an apostrophe, a blank space and two curly brackets. PHP 5.4 - Added ENT_SUBSTITUTE, ENT_DISALLOWED, ENT_HTML401, ENT_HTML5, ENT_XML1 and ENT_XHTML PHP 5.3 - Added ENT_IGNORE constant. PHP 5.4 - Changed the default value for the character-set parameter to UTF-8. PHP 5.6 - Changed the default value for the character-set parameter to the value of the default charset (in configuration). The FILTER_SANITIZE_STRING filter removes tags and remove or encode special characters from a string. json_decode() json_encode() PHP Keywords. Both functions only works with UTF-8 encoded string data. These functions are json_encode () and json_decode (), respectively. PHP has built-in functions to encode and decode JSON data. JSON data structures are very similar to PHP arrays. These characters are double quotes (“), backslash (\) and control characters (most inportant in common use is new line character). Some characters in strings have to be escaped, otherwise json cannot be parsed and an error will occur. JSON is a data format (possible the most) suitable for use with javascript, especially on ajax operations. JSON_ERROR_UTF16 (int) Single unpaired UTF-16 surrogate in unicode escape contained in the JSON string passed to json_decode (). Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML.Ī key starting with \u0000 character was in the string passed to json_decode () when decoding a JSON object into a PHP object. Json_decode() takes a JSON encoded string and converts it into a PHP variable. Test and run json_decode online in your browser. If you are saving json data in database make sure that the particular column collation is set to "latin1_swedish_ci". 1.mysql_set_charset('utf8') // set this line on top of your page in which you are using json. To fix the special character issue you just have to do 2 things. The following example demonstrates how to decode or convert a JSON object to PHP object. You can use the PHP json_decode () function to convert the JSON encoded string into appropriate PHP data type. NULL is returned if the json cannot be decoded or if the encoded data is deeper than the recursion limit.ĭecoding JSON Data in PHP Decoding JSON data is as simple as encoding it. Values true, false and null are returned as TRUE, FALSE and NULL respectively. Returns the value encoded in json in appropriate PHP type. In PHP 5.2.0 this special check did not exist, instead when something was either wrong or empty, an empty string was printed. In PHP 5.4 (unlike PHP 5.2) there's a check for invalid UTF-8 sequences. Then json_encode will just work as documented.įor keys, just like for values, "json_escape_string" is being used. If you need to create valid json successfully from an ANSI encoded string, you need to re-encode/convert it to UTF-8 first. json_encode works with UTF-8 encoded strings only. 5.4 is not released yet though! There is a 5.4 alpha release candidate on QA though if you want to play on your development machine.Ĭonverting ANSI to UTF-8 with PHP. JSON_UNESCAPED_UNICODE was added in PHP 5.4 so it looks like you need upgrade your version of PHP to take advantage of it. If you are saving json data in database make sure that the particular column collation is set to " latin1_swedish_ci ". mysql_set_charset ('utf8') // set this line on top of your page in which you are using json. To fix the special character issue you just have to do 2 things 1. Json_encode not working with special characters in PHP
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