php script to delete files older than 24 hrs, deletes all files

by 
<?php

/** define the directory **/
$dir = "images/temp/";

/*** cycle through all files in the directory ***/
foreach (glob($dir."*") as $file) {

/*** if file is 24 hours (86400 seconds) old then delete it ***/
if(time() - filectime($file) > 86400){
    unlink($file);
    }
}

?>

You can also specify file type by adding an extension after the * (wildcard) eg

For jpg images use: glob($dir."*.jpg")

For txt files use: glob($dir."*.txt")

For htm files use: glob($dir."*.htm")

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