Importing CSV into MySQL with PHP
Build a secure administrator-only workflow that validates fictional CSV data and stores acceptable rows in MySQL.
Understanding CSV Data
CSV means comma-separated values. Each line is a record and each position represents a field. mat...
Designing a MySQL Table from a CSV
Design the destination table from the meaning of the data, not merely its appearance in a spreads...
Creating an Admin-Only CSV Upload Form
A CSV upload changes stored data and should be restricted to administrators. Apply session and ro...
Validating an Uploaded CSV File
Validate the upload before reading its rows. $file = $_FILES["dataset"] ?? null; $errors = []; if...
Reading CSV Rows with fgetcsv
Use PHP’s CSV parser so quoted commas and escaped values are handled correctly. $handle = fopen($...
Validating CSV Rows
Validate every row before storing it. if (count($row) !== 4) { $rowErrors[] = "Row $rowNumber...
Inserting Imported Rows Safely
Prepare the insert once, then execute it for each valid row. $insert = $pdo->prepare( "INSERT...
Reporting CSV Import Results
An administrator needs evidence of what happened, not just “upload complete”. Report useful total...
Building a Complete Admin CSV Import
A complete import combines access control, upload checks, parsing, row validation, prepared state...
Testing an Admin CSV Import
Testing must cover permissions, validation, database effects and feedback. Test Condition Expecte...