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Simple Hello World PHP extension cannot be done

I am trying to run a simple Hello World PHP extension, but after building and installing the extension and when I want to run a test script, I have the following problem:

P Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php5/20121212/skeleton.so' - /usr/lib/php5/20121212/skeleton.so: undefined symbol: _ZN3Php9ExtensionD1Ev in Unknown on line 0
/etc/php5/cli/conf.d/skeleton.ini

My main.cpp

file:

#include <phpcpp.h>
#include <iostream>

void helloWorld (Php::Parameters &params)
{
    std::string name=params[0];
    std::cout<<"Hello "<<name<<"!"<<std::endl;
}

extern "C" {

    PHPCPP_EXPORT void *get_module() 
    {
        static Php::Extension extension("skeleton", "1.0");
        extension.add("helloWorld", helloWorld);
        return extension;
    }
}

And here is my test script:

<?php
echo helloWorld('Ben');

I was inspired by this tutorial: http://www.sitepoint.com/getting-started-php-extension-development-via-php-cpp/

Could you help me with this? Thanks in advance for your help.

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2 answers


I'm not sure if this is the problem, but you should use:

Php::out << "Hello " << name << "!" << std::endl;

instead



std::cout << "Hello " << name << "!" << std::endl;

std :: cout creates some errors in my extensions.

Vinicius

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I was getting the same error until I saw this ticket on PHP-CPP repos: https://github.com/CopernicaMarketingSoftware/PHP-CPP/issues/180

It turns out my problem was that I was following another advice to replace the content of the /zend/

dir file (in the PHP-CPP lib) with the content of the PHP source code (which I got from php.net).



Once I returned the content /zend/

to be the same as PHP-CPP, the problem went away.

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