What I hate about PHP

This is what I really hate about PHP:

pilif@galadriel ~ % cat test.php
if (10 == '10ABC')
    echo "Gnegg!n";
pilif@galadriel ~ % php test.php

This is the reason for a pretty serious bug in my current i’m-loving-doing-that-as-it’s-the-greatest-ever-project

What happens is that PHP implicitly converts 10ABC to an integer (yielding 10) and then making an integer comparison.

In my oppinion, this is wrong as inplicitely converting a string to an integer can cause information to be lost. Would PHP have converted 10 to ’10’, the comparison would have worked like one expects because converting an intger to a string works without losing information.

Then again, integer-conversions are more accurate than string conversions, so I can understand PHP’s way. What I cannot understand is that a non-integer string is converted to something else than 0 or nothing (while causing a runtime-error). The comparison in my example should never have evaluated to a true value (which happened, because intval('10abc') == 10!

And converting to string if one argument of a comparison is a string is not the holy grail either – problems with locale-specific decimal points come to mind (is it . or ,?).

So perls idea of using a dedicated string comparison operator may not have been a bad idea after all…

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