dynamic arguments in php function [duplicate]

Question

Possible Duplicate:
PHP get all arguments as array?

Well,

In java I can do this (pseudocode):

public hello( String..args ){
    value1 = args[0] 
    value2 = args[1] 
    ...
    valueN = arg[n];
}

and then:

hello('first', 'second', 'no', 'matter', 'the', 'size');

Is something like this in php?

EDIT

I now that I can pass an array like hello(array(bla, bla)), but may could exists the way mencioned above, right?

Now, since PHP 5.6, you can use the ...$params syntax: Variable-length argument lists — dr fu manchu
– dr fu manchu, Commented Nov 22, 2018 at 14:17

Gabriel Santos · Accepted Answer · 2015-03-19 13:32:43Z

33

See func_get_args:

function foo()
{
    $numArgs = func_num_args();

    echo 'Number of arguments:' . $numArgs . "\n";

    if ($numArgs >= 2) {
        echo 'Second argument is: ' . func_get_arg(1) . "\n";
    }

    $args = func_get_args();
    foreach ($args as $index => $arg) {
        echo 'Argument' . $index . ' is ' . $arg . "\n";

        unset($args[$index]);
    }
}

foo(1, 2, 3);

EDIT 1

When you call foo(17, 20, 31) func_get_args() don't know that the first argument represents the $first variable for example. When you know what each numeric index represents you can do this (or similar):

function bar()
{
    list($first, $second, $third) = func_get_args();

    return $first + $second + $third;
}

echo bar(10, 21, 37); // Output: 68

If I want a specific variable, I can ommit the others one:

function bar()
{
    list($first, , $third) = func_get_args();

    return $first + $third;
} 

echo bar(10, 21, 37); // Output: 47

edited Mar 19, 2015 at 13:32

answered Jul 14, 2012 at 2:04

Gabriel Santos

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9 Comments

manix Over a year ago

you are so fast an furious :D It was what I am seaching for. Thank you! and the rest of people too

Francisco Corrales Morales Over a year ago

can I do this: func_get_args('argument_name') ? to get the value of an argument.

Gabriel Santos Over a year ago

@FranciscoCorrales You can't. func_get_args() returns a numerical indexed array of arguments, not a variable list with corresponding pair.

Gabriel Santos Over a year ago

@FranciscoCorrales see func_get_args examples

dr fu manchu Over a year ago

This answer is outdated. Since PHP 5.6 you can use Variable-length argument lists

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