From:             m dot kurzyna at crystalpoint dot pl
Operating system: Linux
PHP version:      5.5.2
Package:          JSON related
Bug Type:         Bug
Bug description:json_decode reports invalid literal as valid JSON

Description:
------------
There is a regression in json_decode starting with PHP5.5 (5.4.x works as
expected). 

json_decode() now treats literals staring with an integer as valid JSON
consisting only of the first character.


Test script:
---------------
<?php
var_dump(
  json_decode("9af5"), 
  json_last_error()
);

Expected result:
----------------
NULL
int(4)

Actual result:
--------------
int(9)
int(0)

-- 
Edit bug report at https://bugs.php.net/bug.php?id=65499&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=65499&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=65499&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=65499&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=65499&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=65499&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=65499&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=65499&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=65499&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=65499&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=65499&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=65499&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=65499&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=65499&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=65499&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=65499&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=65499&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=65499&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=65499&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=65499&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=65499&r=mysqlcfg

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