Hello I'm trying to create a download for a svg file that was created before with php. The download and the svg creation works perfectly fine but I don't know how to pass the created svg to the download. I tried to pass the segment value but that doesnt make much sense I guess. So I'm stuck right nw how to pass the created svg to the download. There you can see my code
//INDEX.PHP
<head>
<title>Segment</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.0/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-KyZXEAg3QhqLMpG8r+8fhAXLRk2vvoC2f3B09zVXn8CA5QIVfZOJ3BCsw2P0p/We" crossorigin="anonymous">
</head>
<style>
#svg {
padding-top: 20px;
}
</style>
<body>
<div class="container">
<form method="get">
<label for="segments">Segmente</label><br/>
<input type="number" id="segments" name="segment">
<input type="submit" value="Absenden" name="submit">
</form>
<?php
session_start();
$getSegment = $_GET['segment'];
$_SESSION['getSegment'] = $getSegment;
if (isset($getSegment) && !empty($getSegment)) {
function segment_circle($segments) {
$size = 200;
$radius = $size / 2;
$segment_arc = 360 / $segments;
$segment_mid = ($segment_arc + 180) / 2;
$generate_arc = function($start_angle, $end_angle) use ($radius, $segment_mid) {
$start = [
'x' => $radius + ($radius * cos(($end_angle - $segment_mid) * pi() / 180)),
'y' => $radius + ($radius * sin(($end_angle - $segment_mid) * pi() / 180))
];
$end = [
'x' => $radius + ($radius * cos(($start_angle - $segment_mid) * pi() / 180)),
'y' => $radius + ($radius * sin(($start_angle - $segment_mid) * pi() / 180))
];
if ($end_angle - $start_angle <= 180) {
$arc = 0;
} else {
$arc = 1;
}
//Zeichnet ein Segment
return implode(' ', [
'M', $start[ 'x' ], $start[ 'y' ],
'A', $radius, $radius, 0, $arc, 0, $end[ 'x' ], $end[ 'y' ],
'L', $radius, $radius, 'Z'
]);
};
?>
<svg width="200" height="200" viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg" id="svg">
<?php for ($i = 0; $i < 1; $i++): ?>
<?php
$start_angle = $segment_arc * $i;
$end_angle = $segment_arc * ($i + 1);
?>
<path fill="#red" stroke-width="0" d="<?php echo $generate_arc($start_angle, $end_angle) ?>" />
<?php endfor ?>
</svg>
</div>
<div class="container">
<button class="btn btn-primary" onclick="location.href='download.php'">Download</button>
</div>
</body>
<?php
}
echo segment_circle($getSegment);
} else if (!isset($getSegment) || empty($getSegment)) {
echo 'Bitte trag eine Segmentanzahl ein!';
}
//DOWNLOAD.PHP
<?php
session_start();
$getSegment = $_GET['getSegment'];
header('Content-Disposition: attachment; filename="segment.svg');
header('Content-Type: text/plain');
header('Content-Length: ' . strlen($getSegment));
header('Connection: close');
echo $getSegment;
exit();
