posix_eaccess
posix_eaccess
Determine accessibility of a file
bool **posix_eaccess** string $filename int $flags
checks the effective user's permission of a file
posix_eaccess
filenameThe name of a file to be tested.
flags
A mask consisting of one or more of ,
, and
.
POSIX_F_OK``POSIX_R_OK``POSIX_W_OK``POSIX_X_OK
, and
request checking whether the file
exists and has read, write and execute permissions, respectively.
just requests checking for the
existence of the file.
`POSIX_R_OK``POSIX_W_OK``POSIX_X_OK``POSIX_F_OK`
return.success
Voorbeeld: example
This example will check if the $file is readable and writable, otherwise will print an error message.
<?php
$file = 'some_file';
if (posix_eaccess($file, POSIX_R_OK | POSIX_W_OK)) {
echo 'The file is readable and writable!';
} else {
$error = posix_get_last_error();
echo "Error $error: " . posix_strerror($error);
}
?>
posix_get_last_error``posix_strerror``posix_access