Question

有代码：

<?php
$pamiClient = new PamiClient($options);
$pamiClient->open();
$temp = 42;
$pamiClient->registerEventListener(

    function (EventMessage $event ) 
    {
        if ($event instanceof VarSetEvent) {
            if ($varName == 'CALLID') {
                $temp = 43;
                echo "Temp from CALLID: " , $temp, "\n";
            }

            if ($varName == 'BRIDGEPEER') {
                echo "Temp from BRIDGPEER: " , $temp, "\n";
            } 
        }  
    }
);

while(true) {
    $pamiClient->process();
    usleep(1000);
}

$pamiClient->close();
?>

如何将$ temp传递给函数（EventMessage $ event），以便在 if ($varName == 'CALLID'){}节中可以看到if ($varName == 'BRIDGEPEER') {}-节？

Answer 1

您可以inherit variables from the parent scope和use一起使用，例如：

function (EventMessage $event ) use ($temp)
{
   // to do something
}

Answer 2

使用全局。

例如：

<?php

$varName = "foo";

function test() {
   global $varName;

   if ($varName == "foo") { ... }
}

了解更多：https://www.php.net/manual/en/language.variables.scope.php

PHP：将全局变量传递给函数吗？

2 个答案: