Functions With Unlimited Arguments in php - php

Question

I just want to make a function like array_merge ( array $array1 [, array $... ] )
or simple function like myfunc($st1, $st2, $st3, $st4, $st5, etc)
function make_my_merge($) {
..... operation to be performed ......
}

Answer 1

Use func_get_args() to access all arguments (as an array) passed to the function. Additionally, you can use func_num_args() to get a count of all arguments passed in.
function make_my_merge () {
if ( func_num_args() ) {
$args = func_get_args();
echo join( ", ", $args );
}
}
// Foo, Bar
make_my_merge("Foo", "Bar");
// Foo, Bar, Fizz, Buzz
make_my_merge("Foo", "Bar", "Fizz", "Buzz");
Codepad: http://codepad.org/Dk7MD18I

Answer 2

Use func_get_args():
function make_my_merge() {
$args = func_get_args();
foreach ($args as $arg) {
echo "Arg: $arg\n";
}
}
As can be seen, you get all arguments passed to your function via func_get_args() function which returns an array you can iterate over using each to work on each argument passed.

Answer 3

This should help: PHP Function Variable Arguments

Answer 4

You would never know how many arguments you want... So you cannot define exact function with unlimited arguments in my opimion. But what I suggest is passing 2 arguments in a function, one as number of index or values in array and other the array itself.... It goes something like this
<?php
$arr = array('val1','val2','val3',.....);
$count = count($arr);
$result = your_function($count,$arr);
?>
Your function would look like this which goes somewhere on the top or other php files or class
<?php
function your_function($count,$arr)
{
//Here you know the number of values you have in array as $count
//So you can use for loop or others to merge or for other operations
for($i=0;$i<$count;$i++)
{
//Some operation
}
}
?>