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add files of code before my time in the class

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Schuledaniel
2025-11-18 13:35:07 +01:00
parent 861ebfbe3d
commit 4632ceaac0
23 changed files with 970 additions and 0 deletions
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66
Zweites Jahr/alt/file_handling/file_write.php Executable file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<form>
<div>
<label>First Name:
<input name = "fn">
</label>
</div>
<div>
<label for = "ln">Last Name:</label>
<input id = "ln" name = "ln">
</div>
<button>Ab damit</button>
</form>
<?php
//file: file_write.php
$file = "testfile_1.txt";
$fp = fopen($file, 'w'); // open file for writing
if(!$fp) { // is fp = false?
die("Cannot open file!"); // "die" breaks the script
}
// insert one row
/*
$row = "This is a row\n";
if(!fputs($fp, $row)) echo "Error on writing";
else echo "writing succesful";
*/
// insert from an assoziative array
/*
$myArray = [
"firstname" => "Michael",
"lastname" => "Staudt",
"email" => "staudt@wvss-mannheim.de"
];
foreach($myArray as $attr => $value) {
$row = "$attr: $value\n";
fputs($fp, $row);
}
*/
// insert from form
if(!empty($_REQUEST)) { //submit button clicked
$row = "First Name: $_REQUEST[fn] | Last Name: $_REQUEST[ln]\n";
fputs($fp, $row);
}
fclose($fp);
?>
</body>
</html>

1
Zweites Jahr/alt/file_handling/testfile_1.txt Executable file
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First Name: | Last Name:

1
Zweites Jahr/alt/file_handling/testsfile_1.txt Executable file
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This is a rowThis is a rowThis is a rowThis is a rowThis is a row

50
Zweites Jahr/alt/file_handling/validate_date.php Executable file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<?php
// validate_date.php
//ini_set("display_errors", "on");
// M A I N
$date = "29.02.2400";
if(isValidDate($date)) echo "<p>Datum $date ist <strong>gültig</strong></p>";
else echo "<p>Datum $date ist <strong>ungültig</strong></p>";
// Functions
function isLeapYear(int $year): bool {
return ($year % 4 == 0 && $year % 100 != 0 || $year % 400 == 0);
}
function isValidDate(string $date): bool {
$date_parts = ["Tag","Monat", "Jahr"];
$date_array = explode(".", $date);
$days_of_month = [31,28,31,30,31,30,31,31,30,31,30,31];
if(isLeapYear($date_array[2])) {
$days_of_month[1] = 29;
}
// Monat auf Gültigkeit prüfen
if($date_array[1] < 1 || $date_array[1] > 12) return false;
// Tag auf Gültigkeit prüfen
if($date_array[0] < 1 || $date_array[0] > $days_of_month[$date_array[1]-1]) return false;
// Jahr auf Gültigkeit prüfen
if($date_array[2] < 0 || $date_array[2] > 3000) return false;
// Falls Datum gültig
return true;
}
?>
</body>
</html>