Unexplained syntax error with logical OR ( || )

Question

I\'m working with NetBeans for Mac, and I\'m running CakePHP (though I don\'t think the framework has anything to do with it) in a shared hosting in Linux. This is not a big iss

Answer 1

I'm working With NetBeans for MAC

When is a space not a space?

When it's a non-breaking space!

The intention is:

" || "
207C7C20 (hex)

But what is actually in the source file is almost certainly:

" || "
207C7CA0 (hex)

(on stack overflow it won't be but I bet it is in the source file).

With a mac the problem is (using my own keyboard layout, but I am assuming it's similar in your case):

"|" = alt + 1
" " = alt + space (accidental)

So typing away, with the sequence " || " it's very easy for the alt key to still be depressed when the space bar is pressed and: voilà you get unexpected "wat" syntax errors which at face value make no sense - until you realize what the problem is.

Example:

-> cat foo.php 
<?php

$foo = "x";
if (true || $foo) {
}
-> php -l foo.php 

Parse error: syntax error, unexpected '$foo' (T_VARIABLE) in foo.php on line 4

Errors parsing foo.php