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Why Zephir? >

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Welcome to Zephir, an open source, high-level/domain specific language designed to ease the creation and maintainability of extensions for PHP, with a focus on type and memory safety.

Some features

Zephir’s main features are:

Type system dynamic/static
Memory safety pointers or direct memory management aren’t allowed
Compilation model ahead of time
Memory model task-local garbage collection

A small taste

The following code registers a class with a method that filters variables, returning their alphabetic characters:

namespace MyLibrary;

 * Filter
class Filter
     * Filters a string, returning its alpha characters
     * @param string str
    public function alpha(string str)
        char ch; string filtered = "";

        for ch in str {
           if (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') {
              let filtered .= ch;

        return filtered;

The class can be used from PHP as follows:


$filter = new MyLibrary\Filter();
echo $filter->alpha("01he#l.lo?/1"); // prints hello