Question

I’m quite new with PHP and need help coding an add script for my web site. I have coded the delete and update side and they are working perfectly. Basically, on secdtions of my web site you can add values to several text boxes and what I want is that when you click on ‘Add’ this will add the details from the textboxes to the database. To do this I am using PHP, Jquery and Ajax.

This is the code I have for the update script:

public function update($tableName,$fieldArray,$fieldValues,$rowId,$updateCondition)
{
    // Get PDO handle
    $PDO = new SQL();
    $dbh = $PDO->connect(Database::$serverIP, Database::$serverPort, Database::$dbName, Database::$user, Database::$pass);

    // Build query
    $this->sql = 'UPDATE '.$tableName.' SET ';

    $fieldCount = count($fieldArray);

    for ($i = 0; $i < $fieldCount; $i++){

        // If the index is at the last field...
        $lastRow = $fieldCount - 1;

        if ($i != $lastRow) {

            // Add a comma
            $this->sql .= $fieldArray[$i].'=:'.$fieldArray[$i].', ';

        } else {

            // Dont add a comma
            $this->sql .= $fieldArray[$i].'=:'.$fieldArray[$i].' ';

        }

    }

    // If row id is null (if we don't know the row id)...
    if ($rowId == null || $rowId == "null") {

        // Then use the update condition in it's place
        $this->sql .= 'WHERE '.$updateCondition.' ';

    } else {

        // Use the ID
        $this->sql .= 'WHERE Id = '.$rowId.' ';

    }



    try {

        // Query
        $stmt = $dbh->prepare($this->sql);

        // Bind parameters
        for ($i = 0; $i < $fieldCount; $i++){

            $stmt->bindParam(':'.$fieldArray[$i].'', $fieldValues[$i]);

        }

        $stmt->execute();

        $count = $stmt->rowCount();

        echo $count.' row(s) affected by SQL: '.$stmt->queryString;


        $stmt->closeCursor();

    }

    catch (PDOException $pe) {
        echo 'Error: ' .$pe->getMessage(). 'SQL: '.$stmt->queryString;
        die();
    }   

    // Close connection
    $dbh = null;
}

This is the part I am struggling to code, if you look at the code I have used for my update script.. I basically need something similiar to use for my ‘add’ script.

Any help will be much appreciated!!

Answer 1

Welcome to PHP! It is really a wonderful language 🙂

Try this:

<?php

public function insert($tableName,$fieldArray,$fieldValues)
{
    $sql = "INSERT INTO " . $tableName . " (".implode(',', $fieldArray).") VALUES (".implode(',', $fieldValues).")";

    // TODO: Execute $sql query
}