How to upload and parse a CSV file in php
untested but should give you the idea. the view:
<form action="upload.php" method="post" enctype="multipart/form-data"><input type="file" name="csv" value="" /><input type="submit" name="submit" value="Save" /></form>upload.php controller:
$csv = array();// check there are no errorsif($_FILES['csv']['error'] == 0){ $name = $_FILES['csv']['name']; $ext = strtolower(end(explode('.', $_FILES['csv']['name']))); $type = $_FILES['csv']['type']; $tmpName = $_FILES['csv']['tmp_name']; // check the file is a csv if($ext === 'csv'){ if(($handle = fopen($tmpName, 'r')) !== FALSE) { // necessary if a large csv file set_time_limit(0); $row = 0; while(($data = fgetcsv($handle, 1000, ',')) !== FALSE) { // number of fields in the csv $col_count = count($data); // get the values from the csv $csv[$row]['col1'] = $data[0]; $csv[$row]['col2'] = $data[1]; // inc the row $row++; } fclose($handle); } }}
Although you could easily find a tutorial how to handle file uploads with php, and there are functions (manual) to handle CSVs, I will post some code because just a few days ago I worked on a project, including a bit of code you could use...
HTML:
<table width="600"><form action="<?php echo $_SERVER["PHP_SELF"]; ?>" method="post" enctype="multipart/form-data"><tr><td width="20%">Select file</td><td width="80%"><input type="file" name="file" id="file" /></td></tr><tr><td>Submit</td><td><input type="submit" name="submit" /></td></tr></form></table>PHP:
if ( isset($_POST["submit"]) ) { if ( isset($_FILES["file"])) { //if there was an error uploading the file if ($_FILES["file"]["error"] > 0) { echo "Return Code: " . $_FILES["file"]["error"] . "<br />"; } else { //Print file details echo "Upload: " . $_FILES["file"]["name"] . "<br />"; echo "Type: " . $_FILES["file"]["type"] . "<br />"; echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />"; echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />"; //if file already exists if (file_exists("upload/" . $_FILES["file"]["name"])) { echo $_FILES["file"]["name"] . " already exists. "; } else { //Store file in directory "upload" with the name of "uploaded_file.txt" $storagename = "uploaded_file.txt"; move_uploaded_file($_FILES["file"]["tmp_name"], "upload/" . $storagename); echo "Stored in: " . "upload/" . $_FILES["file"]["name"] . "<br />"; } } } else { echo "No file selected <br />"; }}I know there must be an easier way to do this, but I read the CSV file and store the single cells of every record in an two dimensional array.
if ( isset($storagename) && $file = fopen( "upload/" . $storagename , r ) ) { echo "File opened.<br />"; $firstline = fgets ($file, 4096 ); //Gets the number of fields, in CSV-files the names of the fields are mostly given in the first line $num = strlen($firstline) - strlen(str_replace(";", "", $firstline)); //save the different fields of the firstline in an array called fields $fields = array(); $fields = explode( ";", $firstline, ($num+1) ); $line = array(); $i = 0; //CSV: one line is one record and the cells/fields are seperated by ";" //so $dsatz is an two dimensional array saving the records like this: $dsatz[number of record][number of cell] while ( $line[$i] = fgets ($file, 4096) ) { $dsatz[$i] = array(); $dsatz[$i] = explode( ";", $line[$i], ($num+1) ); $i++; } echo "<table>"; echo "<tr>"; for ( $k = 0; $k != ($num+1); $k++ ) { echo "<td>" . $fields[$k] . "</td>"; } echo "</tr>"; foreach ($dsatz as $key => $number) { //new table row for every record echo "<tr>"; foreach ($number as $k => $content) { //new table cell for every field of the record echo "<td>" . $content . "</td>"; } } echo "</table>";}So I hope this will help, it is just a small snippet of code and I have not tested it, because I used it slightly different. The comments should explain everything.