Obscure PHP5 information
<?= $variable ?> is depreciated in PHP5 (along w/ all other tags that are not <?php ?>). I don’t care so much about the others, but I actually use this one. <?= $title ?> just makes more sense than <?php echo $title; ?>- The last instruction before a closing tag does not require a semicolon; however, this is probably a bug in the PHP parser and you should always terminate it anyway. Perhaps
<?= $variable ?> should actually be <?= $variable; ?>.
- use BCMath functions for precision math. This isn’t really obscure, but every now and then I run into people that have never heard of it, so it makes the list.
- Referring to a variable by-reference is slower than referring to a variable by-value (
&$a vs. $a)
- more to come….
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