php man page for __halt_compiler

__HALT_COMPILER(3)							 1							__HALT_COMPILER(3)

__halt_compiler - Halts the compiler execution

SYNOPSIS
       void __halt_compiler (void  )

DESCRIPTION
	Halts the execution of the compiler. This can be useful to embed data in PHP scripts, like the installation files.

	Byte position of the data start can be determined by the __COMPILER_HALT_OFFSET__ constant which is defined only if there is a __halt_com-
       piler(3) presented in the file.

RETURN VALUES
	No value is returned.

EXAMPLES
       Example #1

	      A __halt_compiler(3) example

	      <?php

	      // open this file
	      $fp = fopen(__FILE__, 'r');

	      // seek file pointer to data
	      fseek($fp, __COMPILER_HALT_OFFSET__);

	      // and output it
	      var_dump(stream_get_contents($fp));

	      // the end of the script execution
	      __halt_compiler(); the installation data (eg. tar, gz, PHP, etc.)

NOTES
       Note

	      __halt_compiler(3) can only be used from the outermost scope.

PHP Documentation Group 													__HALT_COMPILER(3)