Hook up pib
Obviously you’ll have to take care not to create a circular loop and not to make the engine crazy about what you will concretely do in such hooks. From now, we are both a PHP extension and a Zend extension.Look at that: Our PHP extension is effectively called “pib” and shows up, and our Zend extension is effectively called “pib-zend-extension” and shows up as well.Remember that a function call, into the engine, is whether a true function call, or the execution of a new included PHP file, or the execution of a new So whether you are a PHP extension master and a Zend extension slave ; Or the opposite flavor.As for the trick to be fully understood, we repeat here the full lifecycle of PHP and Zend extensions.The same applies to the other ABI settings, such as . Here again, if you say “no”, the engine won’t load your extension and print a warning message about that.Remember that we detail how API and ABI is numbered, To sum things up about API compatibility, well, every step is detailed in zend_load_extension().
Now let’s go for the other way around : we want to be registered by the engine as a PHP extension, and not as a Zend extension, but still want to be hybrid. Also, if another extension between us plays with that, that will smell for us.When the Zend compiler fires in, it compiles a script or a function.Just before ending, it launches a second compiling pass which goal is to resolve unresolved pointers (which value couldn’t be known while compiling the script).This chapter will detail what are the main differences between Zend extensions and PHP extensions, when you should use one instead of the other, and how to build hybrid extensions, aka extensions being both PHP and Zend at the same time (and why do that). Into PHP’s source code, PHP extensions are named as “PHP modules”, whereas Zend extensions are called “Zend extensions”.So into PHP’s heart, if you read the “extension” keyword, you should first think about a Zend extension.
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This is the of every registered Zend extension so far, and it passes it as argument the current not-fully-resolved-yet OPArray. We then analyze it, and try to pull out some informations about it, like the currently-being-compiled function, its arguments informations etc...