PHP 7.1.0 Release Candidate 4 Released


(PHP 4)

com_invokeCalls a COM component's method [deprecated]


mixed com_invoke ( resource $com_object , string $function_name [, mixed $function_parameters ] )

com_invoke() invokes the method named function_name of the COM component referenced by com_object. com_invoke() returns FALSE on error, returns the function_name's return value on success. All the extra parameters function_parameters are passed to the method function_name.

Example #1 Don't use com_invoke(), use OO syntax instead

// do this
$val $obj->method($one$two);
// instead of this:
$val com_invoke($obj'method'$one$two);

Note: This function does not exist in PHP 5; instead, you should use the regular and more natural OO syntax to access properties or call methods.

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User Contributed Notes 1 note

tomer at parity-bit dot com
11 years ago
Note that if you want to use a string to specify the method to call (e.g. a drop-down list to decide what to do to a server process) you can do this in three ways.

The first is to use this function, as in <?php com_invoke($obj, $_GET['func']); ?>
That's bad.

The second is to use eval(), as in <?php eval("\$obj->{$_GET['func']}();"); ?>
That's very very very *very* bad.

The third is to use call_user_func(), as in <?php call_user_func(array($obj, $_GET['func'])); ?>
That's very good.

Remember to validate the user input against a list of allowed methods if a non-admin is at the console.
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