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(",", $input), 2, 1)));
The use of array_slice() is pretty foul as it will allocate a second array which is wasteful.
While it is not possible, you technically can do this to fetch the 0 element:
echo array_shift(explode('.','hello.world.!'));
This will throw a notice if error reporting E_STRICT is on.:
Strict standards: Only variables should be passed by reference
This will be possible in PHP 5.4, but for now you'll have to use some alternative syntax.
For example:
list($first) = explode('.','hello.world.!');
echo $first;
