PHP/File Directory/file exists
Содержание
Checking for Existence with file_exists()
<source lang="html4strict">
<? if ( file_exists ("data.txt") ) {
print "The file exists!";
} ?>
</source>
Checking the existence of a file
<source lang="html4strict">
if (file_exists("/usr/local/htdocs/index.html")) {
print "Index file is there.";
} else {
print "No index file in /usr/local/htdocs.";
}
</source>
Checking Whether a File Exists
<source lang="html4strict">
<?
if (file_exists("snapshot1.png")) {
print "Snapshot1.png exists!\n";
} else {
print "Snapshot1.png does not exist!\n";
}
?>
</source>
file_exists() function returns true if it does, and false otherwise.
<source lang="html4strict">
Its syntax is: bool file_exists (string file) <? $filename = "data.txt"; if (! file_exists ($filename)) :
print "File $filename does not exist!";
endif; ?>
</source>
The file_exists.php script checks to see whether the file is there
<source lang="html4strict">
<?php $file_name="file_exists.php"; if(file_exists($file_name)) {
echo ("$file_name does exist.");
} else {
echo ("$file_name does not exist.");
} ?>
</source>
