PHP test if ('a' == 0)

Asked Nov 10 '14 at 23:01

Active Nov 10 '14 at 23:01

Viewed 40 times

I know that '0' == 0 is true in PHP, but this:

<?php
    if ('a' == 0)
        echo "YES";
?>

will print YES on the screen.
This bothers me. The question:

Why the string 'a' (or "a") is equal to the number 0?
I was thinking about automatic char->number conversion, but 'b' == 1 is false...

PHP Versions tested:

asked Nov 10 '14 at 23:01

tonjo

See also [Comparing String to Integer gives strange results](http://stackoverflow.com/questions/672040/comparing-string-to-integer-gives-strange-results) – p.s.w.g Nov 10 '14 at 23:04
To get the ASCII code of the letter use `ord('a')` – developerwjk Nov 10 '14 at 23:09

0 Answers0