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14 calls to file_stream_wrapper_valid_scheme() in Drupal 7

drupal_dirname in includes/file.inc
Gets the name of the directory from a given path.
drupal_rmdir in includes/file.inc
Removes a directory.
drupal_tempnam in includes/file.inc
Creates a file with a unique filename in the specified directory.
drupal_unlink in includes/file.inc
Deletes a file.
file_download in includes/file.inc
Menu handler for private file transfers.
file_prepare_directory in includes/file.inc
Checks that the directory exists and is writable.
file_save_upload in includes/file.inc
Saves a file upload to a new location.
file_stream_wrapper_uri_normalize in includes/file.inc
Normalizes a URI by making it syntactically correct.
file_transfer in includes/file.inc
Transfers a file to the client using HTTP.
file_valid_uri in includes/file.inc
Determines whether the URI has a valid scheme for file API operations.
image_gd_save in modules/system/image.gd.inc
GD helper to write an image resource to a destination file.
image_style_deliver in modules/image/image.module
Page callback: Generates a derivative, given a style and image path.
StreamWrapperTest::testGetValidStreamScheme in modules/simpletest/tests/file.test
Test the scheme functions.
StreamWrapperTest::testPharStreamWrapperRegistration in modules/simpletest/tests/file.test
Tests that phar stream wrapper is registered as expected.