How to download file using php & javascript?
How to download file using php & javascript?
1 answer
by
samara ,
6 months ago
@denis
To download a file using PHP and JavaScript, you can use a combination of server-side PHP code to fetch the file and client-side JavaScript code to trigger the download.
Here is an example of how you can achieve this:
- Create a PHP script to fetch the file from the server:
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<?php
$file = 'path/to/your/file.pdf'; // Path to the file you want to download
if (file_exists($file)) {
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename=' . basename($file));
header('Content-Length: ' . filesize($file));
readfile($file);
exit;
} else {
echo 'File not found';
}
?>
|
- Create a JavaScript function to trigger the file download:
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function downloadFile() {
fetch('download.php')
.then(response => {
if (!response.ok) {
throw new Error('File not found');
}
return response.blob();
})
.then(blob => {
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = 'file.pdf';
a.click();
URL.revokeObjectURL(url);
})
.catch(error => {
console.error(error);
});
}
|
- Call the downloadFile function when needed, such as on a button click:
1
|
<button onclick="downloadFile()">Download File</button> |
Make sure to replace 'path/to/your/file.pdf' with the actual path to the file you want to download and 'file.pdf' with the desired name for the downloaded file.
This code snippet demonstrates a simple way to download a file using PHP and JavaScript, but you can customize it further based on your specific requirements.