This document discusses PHP file upload settings and functions for uploading files through a PHP form. It covers checking PHP settings for file uploads, creating a HTML form with enctype of multipart/form-data, validating the file size and type, moving the uploaded file, generating random filenames, and checking the content type. The document is presented by Vishal Kothari and provides his contact information.

1. PHP Training – Session 5
File uploads with PHP

2. PHP Settings
• file_uploads
• upload_max_filesize
• post_max_size
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3. HTML Form
• Method = post
• Enctype = multipart/form-data
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4. Check if file exists
• Check if uploaded file already exists
• file_exists()
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5. Limit File Size
• $_FILES[ $input_element ][ ‘size’ ]
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6. Limit File Type
• Check extension of uploaded file
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7. Upload the file
• move_uploaded_file
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8. Random Filename
• Upload files with different filenames
• No ready function in PHP to generate random
string
• Use md5(), or custom function
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9. Checking Content-Type
• Validate file’s content-type
• $_FILES[ $input_element ][ ‘type’ ]
vishal@tychesoftwares.com - 9819888007Vishal Kothari

10. Questions?
vishal@tychesoftwares.com - 9819888007Vishal Kothari