php man page for stream_resolve_include_path

STREAM_RESOLVE_INCLUDE_PATH(3)						 1					    STREAM_RESOLVE_INCLUDE_PATH(3)

stream_resolve_include_path - Resolve filename against the include path

SYNOPSIS
       string stream_resolve_include_path (string  $filename)

DESCRIPTION
	Resolve $filename against the include path according to the same rules as fopen(3)/include(3).

PARAMETERS
	      o $filename
		- The filename to resolve.

RETURN VALUES
	Returns a string containing the resolved absolute filename, or FALSE on failure.

EXAMPLES
       Example #1

	      stream_resolve_include_path(3) example

	       Basic usage example.

	      <?php
	      var_dump(stream_resolve_include_path("test.php"));
	      ?>

	      The above example will output something similar to:

	      string(22) "/var/www/html/test.php"

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