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'.

$scores = array();
for ($i=0;$i<3;$i++) {
        array_push($scores, rand(1, 99999));
}

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')");

foreach ($scores as $key => $value) {
        mysqli_query($con, "INSERT INTO `test` VALUES ('', '$value')");
}

We could then use our retrieving data techniques to see the new information...

$q = mysqli_query($con, "SELECT * FROM `test`"); //Gets all from table 'test'
$scores2 = array();
while ($row = mysqli_fetch_array($q)) {
        //$row = next row of results/all rows from table 'test' within database 'fln'
        echo "Before sorting... ".$row['score']."<br/>"; //Echo current $row's column value of 'id'.
        array_push($scores2, $row['score']);
}
arsort($scores2);
$ind = 0;
foreach($scores2 as $key => $value) {
        echo 'After sorting. ID: ' . $ind . '. Score: ' . "$value <br />";
        $ind += 1;
}

Full Source:

<?php
        $con = mysqli_connect('localhost', 'root', '', 'fln'); //server, username, password, database name
        $scores = array();
        for ($i=0;$i<3;$i++) {
                array_push($scores, rand(1, 99999));
        }
        foreach ($scores as $key => $value) {
                mysqli_query($con, "INSERT INTO `test` VALUES ('', '$value')");
        }
 
        $q = mysqli_query($con, "SELECT * FROM `test`"); //Gets all from table 'test'
        $scores2 = array();
        while ($row = mysqli_fetch_array($q)) {
                //$row = next row of results/all rows from table 'test' within database 'fln'
                echo "Before sorting... ".$row['score']."<br/>"; //Echo current $row's column value of 'id'.
                array_push($scores2, $row['score']);
        }
        arsort($scores2);
        $ind = 0;
        foreach($scores2 as $key => $value) {
        echo 'After sorting. ID: ' . $ind . '. Score: ' . "$value <br />";
        $ind += 1;
        }
?>

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