#18662 [Bgs->Csd]: unserialize returns false if some element is empty

ID: 18662 User updated by: to@andybutkaj.com Reported By: to@andybutkaj.com -Status: Bogus +Status: Closed Bug Type: Strings related Operating System: Windows 2000 and Windows XP PHP Version: 4.2.2 New Comment: Please read, read, read solid and properly SNIPER, i still talking about helpful (maybe not for you) differences between earlier versions of php and actual versions. It is not a PHP problem? Pleas try read two times, before you something write. Everybody knows it is Jscript error. Thank you nohn@php.net for serious interest about. Previous Comments: ------------------------------------------------------------------------ [2002-08-02 05:41:31] sniper@php.net Fix your jscript. Not PHP problem. ------------------------------------------------------------------------ [2002-08-02 03:52:28] to@andybutkaj.com Client side function to serialize an array [JScript]: 1 function serialize (toSerialize) 2 { 3 var fill = ''; 4 5 /** chcek argument type */ 6 var argType = typeof (toSerialize); 7 8 /** decide by type, how to serialize */ 9 if (argType == 'number') 10 return 'i:' + toSerialize + ';'; 11 else if (argType == 'boolean') 12 return 'b:' + (toSerialize == true ? '1' : '0') + ';'; 13 else if (argType == 'string') 14 { 15 /** check if string doesn't be repesented as number */ 16 if (!isNaN (toSerialize)) 17 return 'i:' + toSerialize + ';'; 18 else 19 return 's:' + toSerialize.length + ':"' + toSerialize + '";'; 20 } 21 else if (argType == 'object') 22 { 23 /** serialize object usualy array */ 24 var noItems = 0 25 for (var i in toSerialize) 26 { 27 var itemKey = serialize (i); 28 var itemValue = serialize (toSerialize [i]); 29 30 fill += itemKey + itemValue; 31 noItems = noItems + 1; 32 } 33 fill = 'a:' + noItems + ':{' + fill + '}'; 34 } 35 36 /** return serialized string */ 37 return fill; 38 } ___________________________________________________________ Making an array at client-side (JScript). if (save_array[i] != "undefined") { save_array[i] = new Array(); save_array[i]["mkey_index"] = new Array(); save_array[i]["save_type"] = new Array(); save_array[i]["integer"] = new Array(); } save_array[i]["mkey_index"] = text; // some text save_array[i]["save_type"] = integer; // 1 save_array[i]["integer"] = empty_string; // '' ___________________________________________________________ Server-side (PHP 4.0.6): JScript serialized string we can unserialize with php 4.0.6 without lost any information and array looks like this: array (0 => array("mkey_index" => "some text", "save_type" => 1, "integer" => 0), ...); So you can see this: Part of a serialized string 'i:;' is after unserialize under php406 INTEGER VALUE 0!; ___________________________________________________________ Server-side 4.2.2: Unserialize return bool(false), unserialize "crashed" on sequence 'i:;' in serialized string (correct work). ___________________________________________________________ Client side function 'patch': (JScript) Above (line 17): I changed this line this way to correct serialize in JScript: 17 return (toSerialize == '') ? 's:0:"";' : 'i:' + toSerialize + ';'; PHP422 returns an array with empty string now. ------------------------------------------------------------------------ [2002-08-02 02:56:43] nohn@php.net You don't need to give your full Arrays. What we need is a working example. ------------------------------------------------------------------------ [2002-08-01 19:46:06] to@andybutkaj.com i cannot attach full example, it is client-server communication, where client make the serialized string in php rules for php. Serialized string in earlier versions of php (e.g 4.0.6) may contain wrong sequenction (i:; what mean integer with nothing value), while this version (4.2.2) dont support this. You cannot make php serialized string with something like this, integer is followed by number always. Everything what i wanted is explain the differences. When i was opening the bug i dont know them. (i think it is helpful) For me, it is more bug for earlier version than bug for this version php. My question is, can i close the status? This is no bug for me anymore... ------------------------------------------------------------------------ [2002-07-31 18:08:49] sniper@php.net Please attach the full example, in which you serialize and unserialize the variables. Just adding some random, supposedly serialized string is not very helpful. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/18662 -- Edit this bug report at http://bugs.php.net/?id=18662&edit=1