is_executable — Checks whether a file is executable.
TRUE if executable; FALSE otherwise
Checks whether the specified file is executable. Note:
The results of this function are cached. See clearstatcache() for details.
Example 332. Determine
whether a file is executable
$file = "testfile";
echo ("File $file is executable.");
echo ("File $file is not executable.");
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
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