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file : add the methods is_readable, is_writeable, is_executable

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git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@3332 bf3deb0d-5f1a-0410-827f-c0cc1f45334c
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Dominique Fournier
2016-12-22 15:17:05 +00:00
parent 189801d244
commit 0dbe6b5ab4
1 changed files with 44 additions and 0 deletions
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44
file.php
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@@ -265,6 +265,50 @@ class file
return false;
}
/** Tells whether a file exists and is writeable
* @param string $filename The filename to test
* @return bool true if the $filename is a file exists and is writeable
* @throws If parent directory not exists, or is not executable
*/
public function is_executable ($filename)
{
$this->debug (2, "is_executable ($filename)");
$filename = $this->realpath ($filename);
$this->checkPathRO (dirname ($filename));
if (file_exists ($filename) && is_executable ($filename))
return true;
return false;
}
/** Tells whether a file exists and is readable
* @param string $filename The filename to test
* @return bool true if the $filename is a file exists and is readable
* @throws If parent directory not exists, or is not executable
*/
public function is_readable ($filename)
{
$this->debug (2, "is_readable ($filename)");
$filename = $this->realpath ($filename);
$this->checkPathRO (dirname ($filename));
if (file_exists ($filename) && is_readable ($filename))
return true;
return false;
}
/** Tells whether a file exists and is writeable
* @param string $filename The filename to test
* @return bool true if the $filename is a file exists and is writeable
* @throws If parent directory not exists, or is not executable
*/
public function is_writeable ($filename)
{
$this->debug (2, "is_writeable ($filename)");
$filename = $this->realpath ($filename);
$this->checkPathRO (dirname ($filename));
if (file_exists ($filename) && is_writeable ($filename))
return true;
return false;
}
/** Lock a file exclusively
* @param string $filename The file to lock