Aufgaben und Übungen, 00001

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davidvajda.de
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Re: Aufgaben und Übungen, 00001

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Code: Alles auswählen

<?php
session_start ();
?>

<form method="POST" action="./form20240309.php">
<input type="text" name="form2024030901"></input>
<input type="submit"></input>
</form>

<?php
echo session_id () . "<br>\n";

setcookie ("form2024030902", "Ich bin Cookie 1", time () + 1200);

echo htmlentities ($_POST ["form2024030901"]) . "<br>\n";
echo htmlentities ($_COOKIE ["form2024030902"]) . "<br>\n";
echo htmlentities ($_COOKIE ["form2024030903"]) . "<br>\n";

session_destroy ();
?>

Code: Alles auswählen

POST http://localhost/mysql20240217/20240309/form20240309.php HTTP/1.1
host: localhost
Cookie: form2024030903=Hallo ich bin das zweite Cookie
Content-Length: 38
Content-Type: application/x-www-form-urlencoded

form2024030901=Hallo ich bin das Datum

Code: Alles auswählen

Trying ::1...
Connected to localhost.
Escape character is '^]'.
HTTP/1.1 200 OK
Date: Sat, 09 Mar 2024 18:17:57 GMT
Server: Apache/2.4.57 (Debian)
Set-Cookie: PHPSESSID=0ab4vp5g1buk6p4fkcus36c2it; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Set-Cookie: form2024030902=Ich%20bin%20Cookie%201; expires=Sat, 09 Mar 2024 18:37:57 GMT; Max-Age=1200
Vary: Accept-Encoding
Content-Length: 239
Content-Type: text/html; charset=UTF-8


<form method="POST" action="./form20240309.php">
<input type="text" name="form2024030901"></input>
<input type="submit"></input>
</form>

0ab4vp5g1buk6p4fkcus36c2it<br>
Hallo ich bin das Datum<br>
<br>
Hallo ich bin das zweite Cookie<br>

Code: Alles auswählen

<?php
session_start ();

include ("/home/david/mysqldata.php");

$db = new PDO ("mysql: host=localhost", $MYSQL_USER, $MYSQL_PASSWORD);

$sql = "CREATE DATABASE mysql20240309" . session_id () . "; ";
$db->query ($sql);

$sql = "USE mysql20240309" . session_id () . "; ";
$db->query ($sql);

$sql = "CREATE TABLE a (x1 INTEGER, x2 INTEGER); ";
$db->query ($sql);

$sql = "CREATE TABLE b (y1 INTEGER, y2 INTEGER); ";
$db->query ($sql);

$sql = "INSERT INTO a (x1, x2) VALUES (0, 0); ";
$db->query ($sql);

$sql = "INSERT INTO a (x1, x2) VALUES (0, 1); ";
$db->query ($sql);

$sql = "INSERT INTO a (x1, x2) VALUES (1, 0); ";
$db->query ($sql);

$sql = "INSERT INTO a (x1, x2) VALUES (1, 1); ";
$db->query ($sql);

$sql = "INSERT INTO b (y1, y2) VALUES (0, 1); ";
$db->query ($sql);

$sql = "INSERT INTO b (y1, y2) VALUES (1, 0); ";
$db->query ($sql);

$sql = "INSERT INTO a (x1, x2) VALUES (2, 7); ";
$db->query ($sql);

$sql = "INSERT INTO b (y1, y2) VALUES (2, 7); ";
$db->query ($sql);

$sql = "SELECT x1, x2 FROM a; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", " . $row [1] . "<br>\n";
echo "<br>\n";

$sql = "SELECT y1, y2 FROM b; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", " . $row [1] . "<br>\n";
echo "<br>\n";

$sql = "SELECT x1, x2, y1, y2 FROM a INNER JOIN b ON a.x1 = b.y1; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", " . $row [1] . ", " . $row [2] . ", "  .$row [3] . "<br>\n";
echo "<br>\n";

$sql = "DROP DATABASE mysql20240309" . session_id () . "; ";
$db->query ($sql);

session_destroy ();
?>

Code: Alles auswählen

<?php
session_start ();

include ("/home/david/mysqldata.php");

$db = new PDO ("mysql: host=localhost", $MYSQL_USER, $MYSQL_PASSWORD);

$sql = "CREATE DATABASE d20240309" . session_id () . "; ";
$db->query ($sql);

$sql = "USE d20240309" . session_id () . "; ";
$db->query ($sql);

$sql = "CREATE TABLE a (x INTEGER); CREATE TABLE b (x INTEGER); CREATE TABLE c (x INTEGER); ";
$db->query ($sql);

for ($i = 0;  $i < 18;  $i++) {
    $sql = "INSERT INTO a (x) VALUES (" . rand () % 24 . "); INSERT INTO b (x) VALUES (" . rand () % 32 . "); INSERT INTO c (x) VALUES (" . rand () % 18 . "); ";
    $db->query ($sql);
}

$sql = "SELECT x FROM (SELECT x FROM a UNION SELECT x FROM b) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (SELECT x FROM a UNION SELECT x FROM c) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (SELECT x FROM b UNION SELECT x FROM c) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (SELECT x FROM a INTERSECT SELECT x FROM b) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (SELECT x FROM a INTERSECT SELECT x FROM c) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (SELECT x FROM b INTERSECT SELECT x FROM c) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (
            SELECT x FROM (SELECT x FROM a UNION SELECT x FROM b) x
                INTERSECT
            SELECT x FROM c
    ) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (
            SELECT x FROM (SELECT x FROM a INTERSECT SELECT x FROM c) x
                UNION
            SELECT x FROM (SELECT x FROM b INTERSECT SELECT x FROM c) x
    ) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (
            SELECT x FROM (SELECT x FROM a UNION SELECT x FROM c) x
                INTERSECT
            SELECT x FROM b
    ) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (
            SELECT x FROM (SELECT x FROM a INTERSECT SELECT x FROM b) x
                UNION
            SELECT x FROM (SELECT x FROM c INTERSECT SELECT x FROM b) x
    ) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (
            SELECT x FROM (SELECT x FROM b UNION SELECT x FROM c) x
                INTERSECT
             SELECT x FROM a
    ) x;";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "SELECT x FROM (
            SELECT x FROM (SELECT x FROM b INTERSECT SELECT x FROM a) x
                UNION
            SELECT x FROM (SELECT x FROM c INTERSECT SELECT x FROM a) x
    ) x; ";
$stmt = $db->query ($sql);
while ($row = $stmt -> fetch ())
    echo $row [0] . ", ";
echo "<br>\n";

$sql = "DROP DATABASE d20240309" . session_id () . "; ";
$db->query ($sql);

session_destroy ();
?>

Code: Alles auswählen

17, 13, 23, 22, 20, 7, 15, 19, 5, 18, 12, 1, 11, 3, 24, 25, 14, 30, 2, 29, 27, 10, 8, <br>
17, 13, 23, 22, 20, 7, 15, 19, 5, 18, 12, 1, 11, 6, 4, 10, 8, 2, <br>
3, 24, 1, 13, 25, 14, 30, 2, 29, 17, 27, 23, 10, 8, 6, 4, 5, 12, 11, 7, 15, <br>
17, 13, 23, 1, <br>
17, 13, 7, 15, 5, 12, 1, 11, <br>
1, 13, 2, 17, 10, 8, <br>
17, 13, 7, 15, 5, 12, 1, 11, 2, 10, 8, <br>
17, 13, 7, 15, 5, 12, 1, 11, 2, 10, 8, <br>
17, 13, 23, 1, 10, 8, 2, <br>
17, 13, 23, 1, 10, 8, 2, <br>
1, 13, 17, 23, 5, 12, 11, 7, 15, <br>
1, 13, 17, 23, 5, 12, 11, 7, 15, <br>

Code: Alles auswählen

#!/bin/bash

if [[ "$1" == "David" && "$2" == "Vajda" ]]
then
    echo "Das bin ich"
elif [[ "$1" == "David Vajda" && -z "$2" ]]
then
    echo "Das bin ich"
elif [[ "$1" == "David" && -z "$2" ]]
then
    echo "Das koennte ich sein"
elif [[ "$1" == "Vajda" && -z "$2" ]]
then
    echo "das koennte ich sein"
elif [ -n "$1" ]
then
    echo "das bin ich nicht"
else
    i=0
    while [ $i -lt 10 ]
    do
        echo "Hallo zum $(($i+1))."
        i=$(($i+1))
    done
    a=(Aber hallo sage ich)
    a+=(Genau das sage ich)
    i=0
    while [ $i -lt 8 ]
    do
        echo "${a[$i]}"
        i=$(($i+1))
    done
    for s in "${a[@]}"
    do
        echo "$s"
    done
    echo "Hallo Welt"
    l=$(ls)
    for s in $l
    do
        echo "$s"
    done
fi

Code: Alles auswählen

Hallo zum 1.
Hallo zum 2.
Hallo zum 3.
Hallo zum 4.
Hallo zum 5.
Hallo zum 6.
Hallo zum 7.
Hallo zum 8.
Hallo zum 9.
Hallo zum 10.
Aber
hallo
sage
ich
Genau
das
sage
ich
Aber
hallo
sage
ich
Genau
das
sage
ich
Hallo Welt
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