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<iframe width="560" height="315" src="http://www.youtube.com/embed/iARFUYsqpTg" frameborder="0" allowfullscreen></iframe>
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Thumb PHP Image Filter Name Rename Tutorial Upload jpg gif png On the Fly
Embed Source - http://www.youtube.com/watch?v=iARFUYsqpTg
Publish Date - Mar 25, 2011     Author - Adam Khoury
PHP Image Filter Name Rename Tutorial Upload jpg gif png On the Fly
Master PHP Image Processing with Adam Khoury in this Video Textbook Series. In this video we learn how to filter or rename an uploaded image file's name so that strange characters or spaces in the name do not present issues. In our example the function will work for renaming and filtering JPG, GIF, and PNG type of images file names.
Lesson Code
<!-- -------------------------------------------- -->
<!-- "my_file.php" that has the simple form on it -->
<!-- -------------------------------------------- -->
                       
<form enctype="multipart/form-data" method="post" action="image_upload_script.php">
Choose your file here:
<input name="uploaded_file" type="file"/><br /><br />
<input type="submit" value="Upload It"/>
</form>

<!-- -------------------------------------------- -->
<!-- "image_upload_script.php" -->
<!-- -------------------------------------------- -->

<?php
// Access the $_FILES global variable for this specific file being uploaded
// and create local PHP variables from the $_FILES array of information
$fileName $_FILES["uploaded_file"]["name"]; // The file name
$fileTmpLoc $_FILES["uploaded_file"]["tmp_name"]; // File in the PHP tmp folder
$fileType $_FILES["uploaded_file"]["type"]; // The type of file it is
$fileSize $_FILES["uploaded_file"]["size"]; // File size in bytes
$fileErrorMsg $_FILES["uploaded_file"]["error"]; // 0 for false... and 1 for true
$fileName = preg_replace('#[^a-z.0-9]#i', '', $fileName); 
$kaboom explode("."$fileName); // Split file name into an array using the dot
$fileExt end($kaboom); // Now target the last array element to get the file extension
// $fileName = time().rand().".".$fileExt;
// START PHP Image Upload Error Handling --------------------------------------------------
if (!$fileTmpLoc) { // if file not chosen
    
echo "ERROR: Please browse for a file before clicking the upload button.";
    exit();
} else if(
$fileSize 5242880) { // if file size is larger than 5 Megabytes
    
echo "ERROR: Your file was larger than 5 Megabytes in size.";
    
unlink($fileTmpLoc); // Remove the uploaded file from the PHP temp folder
    
exit();
} else if (!
preg_match("/.(gif|jpg|png)$/i"$fileName) ) {
     
// This condition is only if you wish to allow uploading of specific file types    
     
echo "ERROR: Your image was not .gif, .jpg, or .png.";
     
unlink($fileTmpLoc); // Remove the uploaded file from the PHP temp folder
     
exit();
} else if (
$fileErrorMsg == 1) { // if file upload error key is equal to 1
    
echo "ERROR: An error occured while processing the file. Try again.";
    exit();
}
// END PHP Image Upload Error Handling ----------------------------------------------------
// Place it into your "uploads" folder mow using the move_uploaded_file() function
$moveResult move_uploaded_file($fileTmpLoc"uploads/$fileName");
// Check to make sure the move result is true before continuing
if ($moveResult != true) {
    echo 
"ERROR: File not uploaded. Try again.";
    exit();
}
// Display things to the page so you can see what is happening for testing purposes

echo "The file named <strong>$fileName</strong> uploaded successfuly.<br /><br />";
echo 
"It is <strong>$fileSize</strong> bytes in size.<br /><br />";
echo 
"It is an <strong>$fileType</strong> type of file.<br /><br />";
echo 
"The file extension is <strong>$fileExt</strong><br /><br />";
echo 
"The Error Message output for this upload is: $fileErrorMsg";
?>

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