hi all,
Since the new conditionnal operator ternary was introduced in php 5.3,
I'm little confuse about it.
The documentations says :
Since PHP 5.3, it is possible to leave out the middle part of the ternary
operator. Expression expr1 ?: expr3 returns expr1 if expr1 evaluates to
TRUE, and expr3 otherwise.
I think it is not very usefull because most of the time, in PHP, we need
to check the existance only of a var or return a default value.
$foo = isset($myArray['foo']) ? $myArray['foo'] : 'default';
I can't use the new syntax for that :
// raise a warning if $myArray['foo'] not exists and return 'default'
$foo = $myArray['foo'] ?: 'default';
// return 'default' if $myArray['foo'] not exists or equals '', 0, false,
null
$foo = @$myArray['foo'] ?: 'default';
// return true or 'default'
$foo = isset($myArray['foo']) ?: 'default';
This is the same thing like using if (isset($var)) instead of if ($var),
developpers always use isset() because they known that cause a warning
with array and this can be evaluated to false.
If they want test if $var equals 0, '' or null, they use empty().
I don't know about you, but personnaly, I use certainly 99 % of the time
isset() and 1% empty(). So if the short ternary operator would be more
usefull if it just test the existance of a variable.
This is not a big problem but if a solution exists, this would be so
cool ! Especialy when we have to check existance of twenty or more key in
array. Code would be be lighter and clear.
Since i use PHP, I always have in my 'common function file' a function
like that :
function getIssetVar($var, $default) { return ((isset($var)) ? $var :
$default); }
So is it possible to make a little improvement on this operator or
introduce a new operator or a core function which do that ? What's your
feeling about it ?
--
Alban Leroux s...@paradoxal.org
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