PHP/File Directory/unlink
Содержание
Delete a file with the unlink() function.
<source lang="html4strict">
Its syntax is: int unlink (string file) <? unlink("data.txt"); ?>
</source>
Deleting a file
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<?php $file = "/tmp/junk.txt"; unlink($file) or die ("can"t delete $file: $php_errormsg"); ?>
</source>
Deleting files
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<?php
function delete( $file )
{
if( unlink( $file ) )
{
echo( "$filehas been deleted
" );
}
else
{
echo( "Unable to delete $file" );
} }
?> <html>
<head> <title>Deleting files</title> <head> <body> <?php # for Linux use... #$file_A = "/errlog_bak"; #$file_B = "/errlog_not"; # for Windows use... $file_A = "C:\\errlog.bak"; $file_B = "C:\\errlog.not"; delete($file_A); @delete($file_B); ?> </body>
</html>
</source>
Deleting Files with unlink( )
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<?
$filename = "data.txt";
if (unlink($filename)) {
print "Deleted $filename!\n";
} else {
print "Delete of $filename failed!\n";
}
?>
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Moving a file across filesystems
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<?php if (copy("/tmp/code.c","/usr/local/src/code.c")) {
unlink("/tmp/code.c");
} ?>
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Using file_exists, touch, and unlink together
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<?php $file_name="test.txt"; if(file_exists($file_name)) {
echo ("$file_name does exist.
");
} else {
echo ("The file $file_name does not exist.
");
touch($file_name);
} if(file_exists($file_name)) {
echo ("The file $file_name does exist.
");
unlink($file_name);
} else {
echo ("The file $file_name does not exist.
");
} if(file_exists($file_name)) {
echo ("The file $file_name does exist.
");
} else {
echo ("The file $file_name does not exist.
");
} ?>
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Using the unlink() Function
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<?php
$files = glob("/tmp/*.tmp");
foreach($files as $val) {
unlink($val);
}
?>
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You can remove an existing file with the unlink() function.
<source lang="html4strict">
<? unlink("myfile.txt"); ?>
</source>
