php - Extracted data/text from a webpage is not inserted into mysql db -


i trying insert text extracted webpage not inserted db. using xpath expression extract data , data on webpage within multiple html para or list item tags.

here code

<?php set_time_limit(0); $dbhost = "localhost"; $dbuser = "root"; $dbpass = ""; $dbname = "olx"; $conn = mysql_connect($dbhost, $dbuser, $dbpass) or die ("error connecting database"); mysql_select_db($dbname, $conn); $res1 = mysql_query("select * `item_url` id=10"); while($r1 = mysql_fetch_array($res1)) {     $url = $r1['url'];      $html = file_get_contents($url);            $doc = new domdocument();      @$doc->loadhtml($html);          $xpath = new domxpath($doc);      $details = $xpath->evaluate("//div[@id='description-text']/child::div");     foreach ($details $detail) {         $nodes = $detail->childnodes;         foreach ($nodes $node) {         $string = $node->nodevalue;         $string = preg_replace('/[^a-za-z0-9@.\-]/', ' ', $string); //allow required character         $string = strip_tags($string); //remove html tags          echo $string . '<br>';         }     }    mysql_query("insert `test` (`detail`) values ('$string')") or die(mysql_error());  }  ?>

it displays data in way 

performs skilled technical work in maintenance, repair, replacement, , installation of air conditioning systems.  installs, troubleshoots , repairs air conditioning units.  replaces expansion valves, compressors, motors, coil units , other component parts.  technicians work in residential homes, schools, hospitals, office buildings, or factories.

can't insert data db.is issue of xpath nodes.each line within

tag on webpage.

below html of webpage

<div id="description-text">     <h2 class="title-desc">     <span>ad details</span>     </h2>     <ul class="item-optionals">     <li style="background-color: rgb(251, 251, 251);">     </ul>   <div style="padding-right: 30px; width: 388px;">       <p> performs skilled technical work in maintenance, repair, replacement, , installation of air conditioning systems.</p>       <p>installs, troubleshoots , repairs air conditioning units.</p>        <p>replaces expansion valves, compressors, motors, coil units , other component parts.</p>        <p>technicians work in residential homes, schools, hospitals, office buildings, or factories.</p>     </div> </div>

your code fine, problem called mysql_query @ end of loop processes single nodes of html page, solve it's enough bring mysql_query call in internal foreach loop.

<?php set_time_limit(0); $dbhost = "localhost"; $dbuser = "root"; $dbpass = ""; $dbname = "olx"; $conn = mysql_connect($dbhost, $dbuser, $dbpass) or die ("error connecting database"); mysql_select_db($dbname, $conn); $res1 = mysql_query("select * `item_url` id=10"); while($r1 = mysql_fetch_array($res1)) {     $url = $r1['url'];      $html = file_get_contents($url);            $doc = new domdocument();      @$doc->loadhtml($html);          $xpath = new domxpath($doc);      $details = $xpath->evaluate("//div[@id='description-text']/child::div");     foreach ($details $detail) {         $nodes = $detail->childnodes;         foreach ($nodes $node) {         $string = $node->nodevalue;         $string = preg_replace('/[^a-za-z0-9@.\-]/', ' ', $string); //allow required character         $string = strip_tags($string); //remove html tags          echo $string . '<br>';         mysql_query("insert 'test' ('detail') values ('$string')") or die(mysql_error());         }     }   } ?>

Comments

Post a Comment

Popular posts from this blog

commonjs - How to write a typescript definition file for a node module that exports a function? -

consider, toml node module can use: // toml.d.ts declare module toml { export function parse(value:string):any; } declare module "toml" { export = toml; } then: /// <reference path="../../../../../defs/toml/toml.d.ts"/> import toml = require('toml'); toml.parse(...); however, node module export single function, such 'glob' ( https://github.com/isaacs/node-glob ). the node usage of module be: var glob = require("glob") glob("*.js", {}, callback(err, files) { ... }); you'd naively expect this: // glob.d.ts declare function globs(paths:string, options:any, callback:{(err:any, files:string[]):void; ...but because typescripts 'import' semantics bit strange, seems can use 'import .. = require()' statement alias modules . trying call: /// <reference path="../../../../../defs/glob/glob.d.ts"/> import blog = require('glob'); results in: error ts2072: mod...
Read more

openid - Okta: Failed to get authorization code through API call -

i'm integrating okta own idp server using okta's api. i'm implementing authorization code flow following steps below: in own server, use /api/v1/authn endpoint sessiontoken. use sessiontoken obtain authorization calling endpoint: /oauth2/v1/authorize?client_id=" + clientid + "&sessiontoken=" + sessiontoken + "&response_type=code&response_mode=query&scope=openid&redirect_uri=" + redirecturl + "&state=evanyang&nonce=" it's supposed return response status code 302 , location header containing redirect url code value. however, keep getting response status code 200 , without location header, html body saying "you using unsupported browser." , "javascript disabled on browser." according api documentation: http://developer.okta.com/docs/api/resources/oidc.html#authentication-request , sessiontoken parameter sufficient this: an okta one-time sessiontoken. allows api-based ...
Read more

ios - Change Storyboard View using Seague -

i have following code checks connection server, , depending on want change views if no connection found. nsstring *connect = [nsstring stringwithcontentsofurl:[nsurl urlwithstring:@"http://myserver.com"] encoding:nsutf8stringencoding error:nil]; if (connect == null) { [self performseguewithidentifier:@"network_failure" sender:self]; } else { // other code here } my problem not change views. have added storyboard segue between 2 views identifier of network_failure . not have navigation controller or that, problem? thanks help! no not problem. first of all, in objectivec exists nil object oriented null . must use that. so: if(connect == nil) or better: if(!connect) so due fact nil not same of null , probably code does't enter in if scope . you have been able discover breakpoint. anyway: be sure set trigger segue (line) 2 view controller , , name network_failure (that not best name. should instead view1toview2 ) as, m...
Read more