How to call a specific function inside a snippet

14 Posts

crash85 Reply #1, 11 years, 10 months ago

Hello, supposing i have this snippet that contains various functions

if (!function_exists('test')) {
  function test() {
        return "test";
  }
}
if (!function_exists('test_one')) {
  function test_one() {
        return "test one";
  }
}

and i add this [[!snippet]] inside my template.

How can i then call one of those 2 functions in various parts of the template? Thanks

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24,524 Posts

sottwell Reply #2, 11 years, 10 months ago

You should just be able to call the function in another snippet. Loading the snippet at the beginning of your template makes its functions available within MODX.

<?php
$output = test();
return $output;

Keep in mind that if you use any MODX values or API functions inside of your functions you have to declare global $modx to allow the function to access the $modx object.

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14 Posts

crash85 Reply #3, 11 years, 10 months ago

Thanks sottwell, but that way i should create a snippet for each function i want to call. Is it possible instead to create a single snippet that can dynamically call each function based on a placeholder or by passing it a parameter?

116 Posts

theboxer Reply #4, 11 years, 10 months ago

You can use call_user_func function, so it will look like:

<?php
$fn = $modx->getOption('fn', $scriptProperties, '');
if (empty($fn)) {
    return 'No function was specified.';
}

call_user_func($fn);

and you should be able to call the snippet like

[[yourSnippet? &fn=`functionName`]]

--
John
@theboxer