我从地址获取地址坐标。用户可以上传包含100或1000条记录的CSV文件，之后我将使用
获取坐标数据$cityclean = str_replace(" ", "+", $address);
$details_url = "http://maps.googleapis.com/maps/api/geocode/json?address=" . $cityclean . "&sensor=false";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $details_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$geoloc = json_decode(curl_exec($ch), true);
$lat = $geoloc['results'][0]['geometry']['location']['lat'];
$lng = $geoloc['results'][0]['geometry']['location']['lng'];
我想在获取每条记录时更新进度条。
例如，假设我在CSV中有100条记录。每当我得到坐标时，我想增加进度条。 换句话说，我希望用户能够看到已经成功获取了多少个坐标。
我正在关注示例here，但它无法正常工作。进度条未运行。
这是我的完整代码：
<table >
<form action="<?php
echo $_SERVER["PHP_SELF"];
?>" method="post" enctype="multipart/form-data">
<tr>
<td width="20%">Select file</td>
<td width="80%"><input type="file" name="file" id="file" /></td>
</tr>
<tr>
<td width="20%">Or Enter Address:</td>
<td width="80%"><input type="text" name="address" id="address" /></td>
</tr>
<tr>
<td width="20%">Email address to send geo-Locationfile:</td>
<td width="80%"><input type="text" name="email" id="email" /></td>
</tr>
<tr>
<td></td>
<td><input type="submit" name="submit" /></td>
</tr>
</form>
</table>
<h2>NOTES:</h2>
1.)You can fetch only 10 rows from CSV file, Because this is a demo.
<br>
2.)If you provide address, Then you are not able to download or email generated geoCode file .
<br><br><br><br><br><br>
<h2>Results:-</h2>
<br>
<?php
if (isset($_POST["submit"])) {
require_once 'class.ProgressBar.php';
echo '<div style="width: 300px;">';
//$p->render();
echo '</div>';
if (isset($_FILES["file"])) {
//if there was an error uploading the file
if ($_FILES["file"]["error"] > 0) {
//echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
$data = $_POST["address"];
$address = trim($data);
if ($address != "") {
$cityclean = str_replace(" ", "+", $address);
$details_url = "http://maps.googleapis.com/maps/api/geocode/json?address=" . $cityclean . "&sensor=false";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $details_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$geoloc = json_decode(curl_exec($ch), true);
$lat = $geoloc['results'][0]['geometry']['location']['lat'];
$lng = $geoloc['results'][0]['geometry']['location']['lng'];
echo $address . "------Latitude: " . $lat . " ---- Longitude: " . $lng;
} else {
echo "Please enter a address, Or upload a CSV file.";
}
} else {
//Print file details
echo "Upload: " . $_FILES["file"]["name"] . "<br />";
echo "Type: " . $_FILES["file"]["type"] . "<br />";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
$name = $_FILES['file']['name'];
$ext = strtolower(end(explode('.', $_FILES['file']['name'])));
$type = $_FILES['file']['type'];
$tmpName = $_FILES['file']['tmp_name'];
// check the file is a csv
if ($ext === 'csv') {
if (($handle = fopen($tmpName, 'r')) !== FALSE) {
// necessary if a large csv file
set_time_limit(0);
$row = 1;
$file = fopen('ids.txt', 'w');
$num_records =sizeof(fgetcsv($handle, 1000, ','));
// $calc = 100/$num_records;
$calc=100/20;
$x=1;
$p = new ProgressBar();
$p->render();
while ((($data = fgetcsv($handle, 1000, ',')) !== FALSE) && $row != 20) {
// number of fields in the csv
$address = implode(",", $data);
$p->setProgressBarProgress($x);
$cityclean = str_replace(" ", "+", $address);
$details_url = "http://maps.googleapis.com/maps/api/geocode/json?address=" . $cityclean . "&sensor=false";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $details_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$geoloc = json_decode(curl_exec($ch), true);
$lat = $geoloc['results'][0]['geometry']['location']['lat'];
$lng = $geoloc['results'][0]['geometry']['location']['lng'];
// echo $address . "------Latitude: " . $lat . " ---- Longitude: " . $lng;
fwrite($file, $address . "------Latitude: " . $lat . " ---- Longitude: " . $lng . "\n");
// echo "<br/>";
// echo $details_url;
//show progress bar
echo $x;echo "<br/>";
$x += $calc;
//$x++;
$row++;
}
fclose($file);
fclose($handle);
echo "\n To download generated file <a href='ids.txt'>Click Here</a> . \n";
/* $file = "ids.txt";
$email2 = $_POST["email"];
$file_size = filesize($file);
$handle = fopen($file, "r");
$content = fread($handle, $file_size);
fclose($handle);
$filename = "geoCode.txt";
$content = chunk_split(base64_encode($content));
// a random hash will be necessary to send mixed content
$separator = md5(time());
$message = "Please find your geo location file as an attachment.";
// carriage return type (we use a PHP end of line constant)
$eol = PHP_EOL;
// main header (multipart mandatory)
$headers = "From: name <test@test.com>" . $eol;
$headers .= "MIME-Version: 1.0" . $eol;
$headers .= "Content-Type: multipart/mixed; boundary=\"" . $separator . "\"" . $eol . $eol;
$headers .= "Content-Transfer-Encoding: 7bit" . $eol;
$headers .= "This is a MIME encoded message." . $eol . $eol;
// message
$headers .= "--" . $separator . $eol;
$headers .= "Content-Type: text/plain; charset=\"iso-8859-1\"" . $eol;
$headers .= "Content-Transfer-Encoding: 8bit" . $eol . $eol;
$headers .= $message . $eol . $eol;
// attachment
$headers .= "--" . $separator . $eol;
$headers .= "Content-Type: application/octet-stream; name=\"" . $filename . "\"" . $eol;
$headers .= "Content-Transfer-Encoding: base64" . $eol;
$headers .= "Content-Disposition: attachment" . $eol . $eol;
$headers .= $content . $eol . $eol;
$headers .= "--" . $separator . "--";
//SEND Mail
if (mail($email2, "geoCode", "", $headers)) {
echo "mail send to " . $email2 . " ... OK"; // or use booleans here
} else {
echo "mail send ... ERROR!";
}*/
}
}
}
} else {
}
}
?>
以下是CSV的链接：
https://drive.google.com/open?id=0Bx3FBqTEy_0MaHp1QVhiNkVTLU0
答案 0 :(得分：0)
就像你不能显示进度条...当你提交表单时，帖子被发送到php，它只在服务器上运行你的代码，只有当它完成运行时才会将html内容发送回你的浏览器。
所以......这个php脚本无法按照你的意愿行事。
如果准确的进展很重要，你可以尝试一件事......
您可以通过ajax将表单提交到php脚本（在服务器中）。
php脚本将读取整个csv文件并将其以json数组发送回客户端（您的浏览器）上的调用者js。
js将逐行解析数组，并且对于每一行，它将向另一个php脚本发送单个ajax请求，该脚本将存储该单个记录并重放“ok”（服务器）。
调用者js脚本（浏览器）将更新进度条并再次进行一次调用...
继续这样做，直到数组结束。