尝试通过这些方法延长执行时间，但脚本会过早地结束。它基本上是通过mysql数据库循环并对每一行做一些事情。它应该持续5到10分钟，但在同一地点一直停留。我尝试过以下方法：
set_time_limit(0);
curl_setopt($ch, CURLOPT_TIMEOUT, 2000000);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 200000);
他们都没有工作。请帮忙！
<?php
ini_set('max_execution_time', 500);
$user="5aabf73bdd2c7";
//$user = $_POST['user'];
$servername = "localhost";
$username = "placeprint_1";
$password = "JS313833";
$dbname = "placeprint_1";
// Create connection
$con = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($con->connect_error) {
die("Connection failed: " . $con->connect_error);
}
function file_get_contents_curl($url)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 2000000);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 200000);
curl_setopt($ch,CURLOPT_BINARYTRANSFER, true);
$data = curl_exec($ch);
curl_close ( $ch );
return $data;
}
$sql = "SELECT link, id, cookie FROM rawlinks WHERE cookie='$user' ORDER by ID desc ";
$result = $con->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
$getimagefrom=$row["link"];
$id=$row["id"];
$cookie=$row["cookie"];
echo $getimagefrom;
echo "<br><br>ID:".$id."<br><br>";
$htmlaa = file_get_contents_curl($getimagefrom);
$docaa = new DOMDocument();
@$docaa->loadHTML($htmlaa);
$nodesaa = $docaa->getElementsByTagName('title');
$nodesxaa = $docaa->getElementsByTagName('img');
//get and display what you need:
$titlev = $nodesaa->item(0)->nodeValue;
$metasv = $docaa->getElementsByTagName('meta');
$asv = $docaa->getElementsByTagName('img');
for ($iv = 0; $iv < $metasv->length; $iv++)
{
$metav = $metasv->item($iv);
if($metav->getAttribute('name') == 'description')
$descriptionv = $metav->getAttribute('content');
if($metav->getAttribute('name') == 'keywords')
$keywordsv = $metav->getAttribute('content');
if($metav->getAttribute('property') == 'og:image');
$languagev = $metav->getAttribute('content');
}
for ($ivv = 0; $ivv < $asv->length; $ivv++)
{
$av = $asv->item($ivv);
echo $av->getAttribute('src');
echo "<br>";
$cvarv = $av->getAttribute('src');
echo " <img src='$cvarv' >";
$servername = "localhost";
$username = "placeprint_1";
$password = "JS313833";
$dbname = "placeprint_1";
// Create connection
$con = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($con->connect_error) {
die("Connection failed: " . $con->connect_error);
}
$getimagefrom = rtrim($getimagefrom, '/');
$cvarv = urlencode($cvarv);
$titlev = preg_replace('/[^\p{L}\p{N}\s]/u', '', $titlev);
$descriptionv = preg_replace('/[^\p{L}\p{N}\s]/u', '', $descriptionv);
}
}
}
$con->close();
echo "FINISHED!!!!";
?>
答案 0 :(得分：0)
从php.ini尝试增加max_execution_time并重新启动apache服务器。
要找到php.ini的位置，您可以创建一个phpinfo.php文件并插入以下内容：
<?php phpinfo();
此处提供更多信息：https://mediatemple.net/community/products/dv/204643880/how-can-i-create-a-phpinfo.php-page
当您访问浏览器上的phpinfo.php时，您可以获取php.ini配置文件位置的位置。
从代码中我可以建议，不要为每个循环执行 INSERT mysql请求，而应该在循环中准备插入值，然后在循环后只执行一次实际的mysql请求结束。
另一个建议是在curl_close ( $ch );
return之前file_get_contents_curl()
我已更新您的代码，以便能够以块的形式工作，而不是一次执行所有执行。我创建了一个表import_progress，我们将存储最后导入/执行的行，并为每次执行获取20行：
/**
* Get the last imported ID
*
* @param mysqli $con
*
* @return int
*/
function get_last_inserted_id( $con ) {
$sql = "SELECT imported_id
FROM import_progress
ORDER by ID desc
LIMIT 1";
$result = $con->query( $sql );
if ( $result->num_rows == 0 ) {
//Since you are fetching in descending order
//We need to return a very high number if we did not import anything yet
return 999999999999999999;
} else {
while ( $row = $result->fetch_assoc() ) {
return $row['imported_id'];
}
}
}
/**
* Get the last imported ID
*
* @param mysqli $con
* @param array $ids
*
* @return int
*/
function insert_imported_ids( $con, $ids ) {
$ids = array_unique( array_filter( $ids ) );
if ( empty( $ids ) ) {
return false;
}
$sql = "INSERT INTO import_progress (imported_id) VALUES";
//We now append the data to the mysql string
$insert = [];
foreach ( $ids as $id ) {
$insert[] = "($id)";
}
$sql .= implode( ',', $insert ) . ';';
return $con->query( $sql );
}
/**
* @param string $url
*
* @return mixed
*/
function file_get_contents_curl( $url ) {
$ch = curl_init();
curl_setopt( $ch, CURLOPT_HEADER, 0 );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt( $ch, CURLOPT_URL, $url );
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );
curl_setopt( $ch, CURLOPT_TIMEOUT, 2000000 );
curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT, 200000 );
curl_setopt( $ch, CURLOPT_BINARYTRANSFER, true );
$data = curl_exec( $ch );
curl_close( $ch );
return $data;
}
$user = "5aabf73bdd2c7";
$servername = "db";
$username = "root";
$password = "root";
$dbname = "stack_overflow";
// Create connection
$con = new mysqli( $servername, $username, $password, $dbname );
// Check connection
if ( $con->connect_error ) {
die( "Connection failed: " . $con->connect_error );
}
$last_inserted_id = get_last_inserted_id( $con );
$sql = "SELECT link, id, cookie FROM rawlinks
WHERE cookie='$user'
AND ID < $last_inserted_id
ORDER by ID desc
LIMIT 20";
$result = $con->query( $sql );
if ( $result->num_rows > 0 ) {
$imported_ids = [];
// output data of each row
while ( $row = $result->fetch_assoc() ) {
$getimagefrom = $row["link"];
$id = $row["id"];
$cookie = $row["cookie"];
echo $getimagefrom;
echo "<br><br>ID:" . $id . "<br><br>";
$htmlaa = file_get_contents_curl( $getimagefrom );
$docaa = new DOMDocument();
@$docaa->loadHTML( $htmlaa );
$nodesaa = $docaa->getElementsByTagName( 'title' );
$nodesxaa = $docaa->getElementsByTagName( 'img' );
//get and display what you need:
$titlev = $nodesaa->item( 0 )->nodeValue;
$metasv = $docaa->getElementsByTagName( 'meta' );
$asv = $docaa->getElementsByTagName( 'img' );
for ( $iv = 0; $iv < $metasv->length; $iv ++ ) {
$metav = $metasv->item( $iv );
if ( $metav->getAttribute( 'name' ) == 'description' ) {
$descriptionv = $metav->getAttribute( 'content' );
}
if ( $metav->getAttribute( 'name' ) == 'keywords' ) {
$keywordsv = $metav->getAttribute( 'content' );
}
if ( $metav->getAttribute( 'property' ) == 'og:image' ) {
;
}
$languagev = $metav->getAttribute( 'content' );
}
for ( $ivv = 0; $ivv < $asv->length; $ivv ++ ) {
$av = $asv->item( $ivv );
echo $av->getAttribute( 'src' );
echo "<br>";
$cvarv = $av->getAttribute( 'src' );
echo " <img src='$cvarv' >";
$cvarv = urlencode( $cvarv );
$titlev = preg_replace( '/[^\p{L}\p{N}\s]/u', '', $titlev );
$descriptionv = preg_replace( '/[^\p{L}\p{N}\s]/u', '', $descriptionv );
}
$imported_ids[] = (int)$id;
}
insert_imported_ids($con, $imported_ids);
}
$con->close();
echo "FINISHED!!!!";
答案 1 :(得分：0)
Curl没有任何区别。如果set_time_limit不起作用，则意味着全局配置会覆盖它，请尝试打印以下内容：
var_dump(ini_get('max_execution_time'));
执行set_time_limit(0);之前以及完成之后的一次。
这可以由php.ini编辑，但通常也是免费或共享托管服务提供商的阻止功能，以防止用户过载共享服务器。
答案 2 :(得分：0)
添加
ini_set('max_execution_time', 500);
在页面顶部，这里500是秒数。