Inserting Data in PHP/MySQL

Submitted by Yorkiebar on Wednesday, July 2, 2014 - 19:41.

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Introduction: This tutorial is going to be on how to insert data in to a MySQL table through PHP. This is in companionship with my 'How To Retrieve Data' tutorial found here (http://www.sourcecodester.com/php/7510/retrieving-data-mysqlphp.html). 'Insert': To insert data in to a MySQL table, we have to use the 'INSERT' keyword command in our query statement. Steps: First we need to create the data we are going to insert in to the table. My previous tutorial used a scoring system (found here: ) the example so we are going to be using that table and insert some new 'highscores'. 
  1. $scores = array();
  2. for ($i=0;$i<3;$i++) {
  3. 	array_push($scores, rand(1, 99999));
  4. }
As you can see, we now create three new scores held within a 'scores' array. Each score is using our random function and so will be different each time. Next we are going to run through each of our scores and create a query for each one. The query should execute upon creation and so we don't need to get any returns or results from it. To insert data through a query, we type 'INSERT INTO {tableName} VALUES({data})', like so... mysqli_query("INSERT INTO `testtable` VALUES ('', '1000')"); 
  1. foreach ($scores as $key => $value) {
  2. 	mysqli_query($con, "INSERT INTO `test` VALUES ('', '$value')");
  3. }
We could then use our retrieving data techniques to see the new information... 
  1. $q = mysqli_query($con, "SELECT * FROM `test`"); //Gets all from table 'test'
  2. $scores2 = array();
  3. while ($row = mysqli_fetch_array($q)) {
  4. 	//$row = next row of results/all rows from table 'test' within database 'fln'
  5. 	echo "Before sorting... ".$row['score']."<br/>"; //Echo current $row's column value of 'id'.
  6. 	array_push($scores2, $row['score']);
  7. }
  8. arsort($scores2);
  9. $ind = 0;
  10. foreach($scores2 as $key => $value) {
  11.    	echo 'After sorting. ID: ' . $ind . '. Score: ' . "$value <br />";
  12.    	$ind += 1;
  13. }
Full Source: 
  1. <?php
  2. 	$con = mysqli_connect('localhost', 'root', '', 'fln'); //server, username, password, database name
  3. 	$scores = array();
  4. 	for ($i=0;$i<3;$i++) {
  5. 		array_push($scores, rand(1, 99999));
  6. 	}
  7. 	foreach ($scores as $key => $value) {
  8. 		mysqli_query($con, "INSERT INTO `test` VALUES ('', '$value')");
  9. 	}
  10.  
  11. 	$q = mysqli_query($con, "SELECT * FROM `test`"); //Gets all from table 'test'
  12. 	$scores2 = array();
  13. 	while ($row = mysqli_fetch_array($q)) {
  14. 		//$row = next row of results/all rows from table 'test' within database 'fln'
  15. 		echo "Before sorting... ".$row['score']."<br/>"; //Echo current $row's column value of 'id'.
  16. 		array_push($scores2, $row['score']);
  17. 	}
  18. 	arsort($scores2);
  19. 	$ind = 0;
  20. 	foreach($scores2 as $key => $value) {
  21.     	echo 'After sorting. ID: ' . $ind . '. Score: ' . "$value <br />";
  22.     	$ind += 1;
  23. 	}
  24. ?>

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