Alecdude Posted April 14, 2009 Share Posted April 14, 2009 I'm trying to implement an item that will allow me to add support for all image files, but it seems to be hesitant and I can't figure out why. Here is the if statement: if(strpos(((string)$_FILES['pork']['type']),"image")) { //stuff } I tested this outside of the if statement, and it returned as 0. If I use it in the if statement, it returns as false. It seems to mess up somewhere. But I haven't the foggiest. Help, please? Link to comment https://forums.phpfreaks.com/topic/153947-solved-trouble-with-an-if-statement-dealing-with-file-upload/ Share on other sites More sharing options...
.josh Posted April 14, 2009 Share Posted April 14, 2009 0 is the same as false when it comes to boolean comparisons. Link to comment https://forums.phpfreaks.com/topic/153947-solved-trouble-with-an-if-statement-dealing-with-file-upload/#findComment-809104 Share on other sites More sharing options...
Alecdude Posted April 14, 2009 Author Share Posted April 14, 2009 No, it's because it is in the POSITION of 0. The string being entered is image/somefiletype So it reads image at position 0. Link to comment https://forums.phpfreaks.com/topic/153947-solved-trouble-with-an-if-statement-dealing-with-file-upload/#findComment-809106 Share on other sites More sharing options...
PFMaBiSmAd Posted April 14, 2009 Share Posted April 14, 2009 From the php manual for the function you are using - Warning This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE, such as 0 or "". Please read the section on Booleans for more information. Use the === operator for testing the return value of this function. Link to comment https://forums.phpfreaks.com/topic/153947-solved-trouble-with-an-if-statement-dealing-with-file-upload/#findComment-809108 Share on other sites More sharing options...
.josh Posted April 14, 2009 Share Posted April 14, 2009 exactly. Since it's inside the condition, when it returns 0, the condition is looking at it as false, because... 0 is the same as false when it comes to boolean comparisons. Link to comment https://forums.phpfreaks.com/topic/153947-solved-trouble-with-an-if-statement-dealing-with-file-upload/#findComment-809110 Share on other sites More sharing options...
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