Short-hand mathematical operators
Those are known by most programmers however missed by a lot, the following can be shortened by it’s alternative next to it.
$int1 = $int1 + $int2; -- or alternatively: $int += $int2;
$int1 = $int1 - $int2; -- or alternatively: $int -= $int2;
$int1 = $int1 * $int2; -- or alternatively: $int *= $int2;
$int1 = $int1 / $int2; -- or alternatively: $int /= $int2;
Counters
Here is another very simple one, but good to know for those who don’t know about it.
$int = $int + 1; -- or alternatively: $int++;
$int = $int – 1; -- or alternatively: $int--;
Short-hand print statements
Ever find yourself have to write so much just to be able to echo a variable in HTML? No more!
<?php echo $string; ?> -- or alternatively, <?=$string?>
Braces: you don’t always need them.
You don’t always need to use the braces in any if or while statement if it only containers one directive.
if ($x)
{
echo "is x";
}
Could just be
if ($x) echo "is x";
Ternary operator
My personal favorite, saves a lot of time and I still think it makes readable code
if ($type == 'human')
{
echo 'human';
} else {
echo 'robot';
}
Or why not..
echo ($type == 'human') ? 'human' : 'robot';
You can even set variables using that method
$type_of_person = ($type == 'human') ? 'human' : 'robot';
Verifying zero values not being false
Sometimes we deal with a function that can return a number and we want to make sure it returns a number, but if it returns 0, PHP will consider it as false.
if (getNumber()) { …. }
The number can return 0 and be as false, where as the following will not consider the integer 0 false
if (getNumber() !== false) { … }
Alternative control structure syntax
This is a great feature to do when you’re trying to do a lot of PHP work with HTML, it would be hard to list all of them but you can refer to it here: http://www.php.net/manual/en/control-structures.alternative-syntax.php.
Feel free to post any other ones in the comments section.. we all have that one trick we always use!
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