When I execute this small piece of PHP code:
php -r "echo(in_array(0, array('aaa', 'bbb')));"
That echoes true ...
Of course I have the good return value if I add the strict flag to in_array
, but I just can't understand why it returns true (I can't !!). If anyone can explain me I will sleep well tonight.
PS: Sorry that this is just about curiosity...
That's because for PHP
this code will return true
0 == 'aaa'
So without strict checking PHP
will find your value in given array.
Also, check out this code:
var_dump(0 == 'aaa');
var_dump(0 === 'aaa');
var_dump(in_array(0, array('aaa', 'bbb')));
var_dump(in_array(0, array('aaa', 'bbb'), true));
The last version allows strict type comparison so it will work as expected, that is return false.
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