func_get_args

(PHP 4, PHP 5, PHP 7)

func_get_args — 锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫憋拷锟斤拷锟斤拷锟�

说锟斤拷

func_get_args ( void ) : array

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锟斤拷锟斤拷值

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锟斤拷锟斤拷锟斤拷志

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5.3.0 If this function is called from the outermost scope of a file which has been included by calling include or require from within a function in the calling file, it now generates a warning and returns FALSE. 锟斤拷锟斤拷知锟斤拷锟斤拷畏锟斤拷锟斤拷锟矫ｏ拷直锟接参匡拷锟斤拷2锟斤拷锟斤拷锟斤拷锟阶ｏ拷

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锟斤拷锟斤拷

Example #1 func_get_args() 锟斤拷锟斤拷

<?php
function foo()
{
    $numargs = func_num_args();
    echo "Number of arguments: $numargs<br />\n";
    if ($numargs >= 2) {
        echo "Second argument is: " . func_get_arg(1) . "<br />\n";
    }
    $arg_list = func_get_args();
    for ($i = 0; $i < $numargs; $i++) {
        echo "Argument $i is: " . $arg_list[$i] . "<br />\n";
    }
}

foo(1, 2, 3);
?>

锟斤拷锟斤拷锟斤拷锟教伙拷锟斤拷锟斤拷锟�

Number of arguments: 3<br />
Second argument is: 2<br />
Argument 0 is: 1<br />
Argument 1 is: 2<br />
Argument 2 is: 3<br />

Example #2 PHP 5.3 前锟斤拷使锟斤拷 func_get_args() 锟节的对憋拷

test.php
<?php
function foo() {
    include './fga.inc';
}

foo('First arg', 'Second arg');
?>

fga.inc
<?php

$args = func_get_args();
var_export($args);

?>

PHP 5.3 锟芥本之前锟斤拷锟斤拷锟斤拷锟� 

array (
  0 => 'First arg',
  1 => 'Second arg',
)

PHP 5.3 锟斤拷之锟斤拷陌姹撅拷锟斤拷锟斤拷: 

Warning: func_get_args():  Called from the global scope - no function
context in /home/torben/Desktop/code/ml/fga.inc on line 3
false

Example #3 func_get_args() example of byref and byval arguments

<?php
function byVal($arg) {
    echo 'As passed     : ', var_export(func_get_args()), PHP_EOL;
    $arg = 'baz';
    echo 'After change  : ', var_export(func_get_args()), PHP_EOL;
}

function byRef(&$arg) {
    echo 'As passed     : ', var_export(func_get_args()), PHP_EOL;
    $arg = 'baz';
    echo 'After change  : ', var_export(func_get_args()), PHP_EOL;
}

$arg = 'bar';
byVal($arg);
byRef($arg);
?>

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As passed : array (
0 => 'bar',
)
After change : array (
0 => 'bar',
)
As passed : array (
0 => 'bar',
)
After change : array (
0 => 'baz',
)

注锟斤拷

Note:

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Note:

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