116 vytváření update záka
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<header>
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<ul>
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<li><a href="">molestie honestatis error</a> </li>
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<li><a href="">tempus ex petentium</a> </li>
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<li><a href="">est cursus dictas</a> </li>
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</ul>
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<nav><ul>
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<li><a href="index.php">Úvodní strana</a> </li>
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<li><a href="zaci.php">Seznam žáků</a> </li>
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<li><a href="pridat-zaka.php">Přidat žáka</a> </li>
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</ul></nav>
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</header>
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<header>
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<h1>Hlavička</h1>
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<nav><ul>
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<li><a href="index.php">Úvodní strana</a> </li>
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<li><a href="zaci.php">Seznam žáků</a> </li>
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<li><a href="pridat-zaka.php">Přidat žáka</a> </li>
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</ul></nav>
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</header>
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26
www2databaze/assets/zak.php
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26
www2databaze/assets/zak.php
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<?php
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/**
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* Získá jednoho žáka z databáze podle id
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*
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* @param object $connection - připojení k databázi
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* @param integer $id - id žáka
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*
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* @return mixed asociativní pole, které obsahuje informace o jednom konkrétním žákovi nebo vrátí null, pokud žák nebyl nalezen
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*
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*/
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function getStudent($connection, $id){
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$sql = "SELECT * FROM student WHERE id = ?";
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$stmt = mysqli_prepare($connection, $sql);
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if ($stmt === false) {
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echo mysqli_error($connection);
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} else {
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mysqli_stmt_bind_param($stmt, "i", $id);
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if (mysqli_stmt_execute($stmt)) {
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$result = mysqli_stmt_get_result($stmt);
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return mysqli_fetch_array($result, MYSQLI_ASSOC);
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}
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}
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}
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global $connection;
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require "assets/database.php";
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require "assets/zak.php";
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$connection = connectionDB();
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if (isset($_GET["id"]) and is_numeric($_GET["id"])) {
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$sql = "SELECT * FROM student WHERE id = ". $_GET["id"];
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$result = mysqli_query($connection, $sql);
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if ($result === false) {
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echo mysgli_error($connection);
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} else {
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$students = mysqli_fetch_assoc($result);
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}
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$students = getStudent($connection, $_GET["id"]);
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}
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