Zend Framework PHP file or derived there from is the _ ban can contain arbitrary binary data, use _HALT_COMPILER(). This functionality is to use only in special cases, such as the installation script.
Intended derived from PHP files and there Zend Framework, forbid the inclusion of arbitrary binary data using __ HALT_COMPILER (). This function is used only in special cases such as the installation script.
What Zend Framework PHP file and from there, to contain arbitrary binary data using __ HALT -- COMPILER. This function is used as a special installation script.