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Detailed explanation of the use of file_exists() function in php
- 怪我咯Original
- 2017-07-11 10:42:331962browse
file_exists — Check whether the file or directory exists
Description:
bool file_exists ( string $filename )
Returns TRUE if the file or directory specified by filename exists, otherwise returns FALSE.
Example
Example one
<?php
$filename = '/www/aa/to/foo.txt';
if (file_exists($filename)) {
echo "文件$filename exists";
} else {
echo "文件$filename 不存在";
}
?>The output result is:
File/www/aa/to/foo.txt already exists
Example two
<?php
echo file_exists("test.txt");
?>Use file_exists directly to return true or false.
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