RE: [PHP] == vs = should generate a warning or error -- was: Why won't this work?

Plus, most programmer's editors allow regexp-based searches - and some even allow you to saved named patterns (eg; BBEdit, my fave). You could create a search to find all conditionals using a single = sign. It would have to be based on your particular style, but here's a wild, off-top-of-head, probably wrong/incomplete approach to finding things that look like while($row=mysql_fetch_row($result)) { : /while\s*([^=]+=[^=]+)\s*{/i I'm sure with a little thought that could also be extended to make sure parens were balanced and other neat stuff within the expression. -steve At 4:01 PM -0700 7/19/02, Rasmus Lerdorf wrote:

Wow, that should have been a quiz. I can't believe how many people

missed the == vs = thing and had all these elaborate answers. *grin* Which brings me to my point. Rasmus or any other PHP duder out there -- what are the possibilities of adding a config option in php.ini to WARN or ERROR when you try to use = instead of == in conditional checks like that.

That would suck since many many PHP programs use stuff like: while($row=mysql_fetch_row($result)) { ... } There is absolutely nothing wrong with doing an assignment in a conditional and if it generated a warning it would drive a lot of people crazy. -Rasmus

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