Possible Duplicate:
Access array element from function call in php
instead of doing this:
$s=explode('.','hello.world.!');
echo $s[0]; //hello
I want to do something like this:
echo explode('.','hello.world.!')[0];
But doesn't work in PHP, how to do it? Is it possible? Thank you.
Currently not but you could write a function for this purpose:
function arrayGetValue($array, $key = 0) {
return $array[$key];
}
echo arrayGetValue(explode('.','hello.world.!'), 0);
As the oneliners say, you'll have to wait for array dereferencing to be supported. A common workaround nowadays is to define a helper function for that d($array,0).
In your case you probably shouldn't be using the stupid explode in the first place. There are more appropriate string functions in PHP. If you just want the first part:
echo strtok("hello.world.!", ".");
It's not pretty; but you can make use of the PHP Array functions to perform this action:
$input = "one,two,three";
// Extract the first element.
var_dump(current(explode(",", $input)));
// Extract an arbitrary element (index is the second argument {2}).
var_dump(current(array_slice(explode(",", $input), 2, 1)));
The use of array_slice() is pretty foul as it will allocate a second array which is wasteful.
Not at the moment, but it WILL be possible in later versions of PHP.
While it is not possible, you technically can do this to fetch the 0 element:
echo array_shift(explode('.','hello.world.!'));
This will throw a notice if error reporting E_STRICT is on.:
Strict standards: Only variables should be passed by reference
This will be possible in PHP 5.4, but for now you'll have to use some alternative syntax.
For example:
list($first) = explode('.','hello.world.!');
echo $first;
