json_last_error_msg

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

json_last_error_msg — Returns the error string of the last json_validate(), json_encode() or json_decode() call

Description

json_last_error_msg(): string

Returns the error string of the last json_validate() , json_encode() or json_decode() call, which did not specify JSON_THROW_ON_ERROR .

Parameters

This function has no parameters.

Return Values

Returns the error message on success, or "No error" if no error has occurred.

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User Contributed Notes 1 note

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Anonymous ¶

10 years ago

Here's an updated version of the function:

<?php
 if (!function_exists('json_last_error_msg')) {
 function json_last_error_msg() {
 static $ERRORS = array(
 JSON_ERROR_NONE => 'No error',
 JSON_ERROR_DEPTH => 'Maximum stack depth exceeded',
 JSON_ERROR_STATE_MISMATCH => 'State mismatch (invalid or malformed JSON)',
 JSON_ERROR_CTRL_CHAR => 'Control character error, possibly incorrectly encoded',
 JSON_ERROR_SYNTAX => 'Syntax error',
 JSON_ERROR_UTF8 => 'Malformed UTF-8 characters, possibly incorrectly encoded'
 );

 $error = json_last_error();
 return isset($ERRORS[$error]) ? $ERRORS[$error] : 'Unknown error';
 }
 }
?>