douhulao7642 2013-07-17 18:08
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如何回显函数

I've been struggling to echo the output of a function. I tried this:

echo 'myFunction('foo')'; 

.. which obviously won't work, due to the extra single quotes. Any suggestions?

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  • dsfgds4215 2013-07-17 18:12
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    Let's take this function :

    function getStr()
    {
        return "hello";
    }
    

    It will simply return a string, which means, calling this :

    echo getStr();
    

    Has the same exact result as calling this :

    echo "hello";
    

    Which means, the result of your function can be treated just like a variable (except you cant modify it), so you can do whatever you want with the result :

    $string = getStr() . ' - ' . getStr();
    echo $string; // Will print "hello - hello";
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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