Как сделать progress bar php ajax через file_get_contents()?
Как сделать progress bar php ajax через file_get_contents()?
1 ответ
от
alisa.bahringer ,
7 месяцев назад
@jerrold_langworth
To create a progress bar in PHP using Ajax and file_get_contents() function, you can follow the steps below:
- Set up the HTML structure with a progress bar container and a button to initiate the process:
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<div id="progress-bar-container">
<div id="progress-bar"></div>
</div>
<button id="start-process">Start Process</button>
|
- Add CSS styles to the progress bar container and button:
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<style>
#progress-bar-container {
width: 200px;
border: 1px solid #ccc;
padding: 5px;
}
#progress-bar {
background: #4CAF50;
height: 20px;
width: 0;
}
#start-process {
margin-top: 10px;
}
</style>
|
- Create a JavaScript function to initiate the Ajax request and update the progress bar:
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<script>
document.getElementById('start-process').onclick = function() {
var xhr = new XMLHttpRequest();
xhr.open('GET', 'process.php', true);
// Update progress bar
xhr.onreadystatechange = function() {
if (xhr.readyState === 3 && xhr.status === 200) {
var totalSize = xhr.getResponseHeader('Content-Length');
var loadedSize = xhr.responseText.length;
var progress = Math.round((loadedSize / totalSize) * 100);
document.getElementById('progress-bar').style.width = progress + '%';
}
}
xhr.send();
}
</script>
|
- Create a PHP file process.php to perform the desired process and output the response:
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<?php
// Start your process here
// Make sure to update the relevant logic according to your requirements
$file = file_get_contents('https://example.com/large_file.txt');
echo $file;
?>
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Note: This example assumes that you want to track the progress based on the content length of the response. However, file_get_contents() might not provide real-time progress information. In this case, you may need to use more advanced techniques like curl or server-side scripts to provide actual progress updates.
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