PHP function to shorten file directory strings - php

Question

I am trying to store image file names to a SQL database. The file name looks something like "_p4_analyzed__07001447_20121003-4000096925_Class2_reg_EPI.png" and I was hoping that it would be just "Class2_reg_EPI.png".
I was hoping that this line will do the trick: $fileName = str_ireplace($casePath."/","", $file) but unfortunately when I run it it is still giving me the long name with the path (the '_' underscore acts as the '/'?)
See code below for more information:
$casePath=$path."/".$caseID."/Summary/slicesdir";
global $status;
// print("processImages case path:".$casePath."</br>");
$files = glob($casePath."/*.png");
$connection = getMySqlConnection();
$imageCount= 0;
for($i = 0; $i < count($files); $i++) {
$file = $files[$i];
$fileName = str_ireplace($casePath."/","", $file);
if(strripos($fileName, "grot") === false)
{
$imageCount ++;
//if exists
if(!doesImageExist($fileName, $patientID, $caseID)) {
$id = uniqid("", true);
$sql = "Insert Into images(id,patientid,caseid, image_name,comments,status) VALUES('".mysql_real_escape_string($id)
."','".mysql_real_escape_string($patientID)."','".mysql_real_escape_string($caseID)."', '".mysql_real_escape_string($fileName)."',NULL,".$status[0][0].")";
// print($sql."</br>");
mysql_query("START TRANSACTION", $connection);
$result = mysql_query($sql, $connection);
if($result) {
mysql_query("COMMIT", $connection);
// print("Image data inserted </br>");
} else {
mysql_query("ROLLBACK", $connection);
print("Image Data failed </br>");
}
}
}
}
Any help is appreciated! Thanks in advance!

Answer 1

If the original filename contains path information (e.g. /path/to/the/file.png), and you only want the filename (file.png), you can remove the path using basename()
$filename = basename('/path/to/file.png');
echo $filename; // outputs 'file.png'