Greeting guys, I got a problem on checking and getting a string with multi dim index (like ['blablabla']['blabla']). It confusing me, so I think I need to found an answer to clear myself. First of all, I known that is wrong to get something from a string using a multi dim index or even a string index. I did it by mistakenly set a wrong parameter. The parameter supposed to be array with string as index (That will actually be a hashmap), but I setted a string on it. As result, I got a warning raised: Illegal string offset. It's normal since I use the string as index to attempt to getting something from a string. But the strange thing is, I did the isset check before use the index. It supposed to be hot pass the check, but it did. So I made a shorter test here: https://gist.github.com/raincious/682ba152dbd74537e323#file-stringisset-php The test 1 is what I used in my application, it checks if the array index is set and not empty in same time. A valid param for it should be like this: $string = array( 'check' => 'yes', ); // Please ignore the variable name But when the $string truly turned to a string, it become the source of my question. Please notice that, on document: http://www.php.net/manual/en/function.isset.php says, "Checking non-numeric offsets of strings now returns FALSE." since 5.4, and I using 5.5. So the test 3 (isset($string['check']) one) running as expected, it returns false. However, the test1 (isset($string['check'][0]) one) is unfortunatly not, It actually returnning true. I'm not a experter of PHP and I even need other people's help to read PHP source code, but in the information from the document and the talking with other people gives me some guts to guess the $string['check'][0] actually will be converted into $string[(int)'check'][0] and then into $string[0][0], so the test 1 can be pass. Is that right? So, what I want to know is, why there has two kind of behaviour for isset? Maybe it's better to let the isset($string['check'][0]) and isset($string['check']) both return false? And sorry for my english, please ask if you confused by me. Thank you, R -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
