The following PHP code using foreach does not seem to work. I believe it has to do with "<a href='/$value/access'>
".
下面使用foreach的PHP代码似乎并不起作用。我认为它与 '有关。
I've shared the entire codebase.
我分享了整个代码库。
Does anyone know what is wrong with my statement?
有人知道我的陈述有什么问题吗?
// include/functions.php
/ / include /显然也
<?php
// Defining the basic cURL function
function curl($url) {
// Assigning cURL options to an array
$options = Array(
CURLOPT_RETURNTRANSFER => TRUE, // Setting cURL's option to return the webpage data
CURLOPT_FOLLOWLOCATION => TRUE, // Setting cURL to follow 'location' HTTP headers
CURLOPT_AUTOREFERER => TRUE, // Automatically set the referer where following 'location' HTTP headers
CURLOPT_CONNECTTIMEOUT => 120, // Setting the amount of time (in seconds) before the request times out
CURLOPT_TIMEOUT => 120, // Setting the maximum amount of time for cURL to execute queries
CURLOPT_MAXREDIRS => 10, // Setting the maximum number of redirections to follow
CURLOPT_USERAGENT => "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1a2pre) Gecko/2008073000 Shredder/3.0a2pre ThunderBrowse/3.2.1.8", // Setting the useragent
CURLOPT_URL => $url, // Setting cURL's URL option with the $url variable passed into the function
);
$ch = curl_init(); // Initialising cURL
curl_setopt_array($ch, $options); // Setting cURL's options using the previously assigned array data in $options
$data = curl_exec($ch); // Executing the cURL request and assigning the returned data to the $data variable
curl_close($ch); // Closing cURL
return $data; // Returning the data from the function
}
// Defining the basic scraping function
function scrape_between($data, $start, $end){
$data = stristr($data, $start); // Stripping all data from before $start
$data = substr($data, strlen($start)); // Stripping $start
$stop = stripos($data, $end); // Getting the position of the $end of the data to scrape
$data = substr($data, 0, $stop); // Stripping all data from after and including the $end of the data to scrape
return $data; // Returning the scraped data from the function
}
?>
// code.php
/ / code.php
<?php
//include functions
include_once("include/functions.php");
// Set URL
$url = "https://www.instituteforsupplymanagement.org/ismreport/mfgrob.cfm";
$source = curl($url);
// Collect dataset
$arr = array("PMI","New Orders");
foreach ($arr as $value) {
$data = scrape_between($source,"<strong>$$value","</tr>");
print_r($data);
}
?>
1 个解决方案
#1
0
within the string the second $ is being treated as a string, so you end up with strings like '$PMI'. why not just assign your variable variable to a temp variable:
在字符串中,第二个$被当作一个字符串处理,因此您最终会得到像“$PMI”这样的字符串。为什么不把变量变量赋给一个临时变量:
$start = $$value;
$data = scrape_between($source,"<strong>$start","</tr>");
also I don't know how you plan to use "New Orders" as a variable name what with the space and all. maybe you're trying to use "PMI" and "New Orders" in the string, in which case just drop the extra $
我也不知道你打算如何使用“新订单”作为一个变量名称和空间和所有。也许你正试着在字符串中使用“PMI”和“新订单”,在这种情况下,只需将额外的$。
#1
0
within the string the second $ is being treated as a string, so you end up with strings like '$PMI'. why not just assign your variable variable to a temp variable:
在字符串中,第二个$被当作一个字符串处理,因此您最终会得到像“$PMI”这样的字符串。为什么不把变量变量赋给一个临时变量:
$start = $$value;
$data = scrape_between($source,"<strong>$start","</tr>");
also I don't know how you plan to use "New Orders" as a variable name what with the space and all. maybe you're trying to use "PMI" and "New Orders" in the string, in which case just drop the extra $
我也不知道你打算如何使用“新订单”作为一个变量名称和空间和所有。也许你正试着在字符串中使用“PMI”和“新订单”,在这种情况下,只需将额外的$。