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December 21, 2015 10:09
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print out all charts from a finviz chart screen page.
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| <?php | |
| /* | |
| * Prints out all finviz charts from a specific screen. | |
| */ | |
| // ----------------------------------------------- | |
| libxml_use_internal_errors(1); | |
| DEFINE('F_BASE', 'http://finviz.com/screener.ashx?v=212&f=cap_midover,fa_eps5years_o15,sh_avgvol_o750,ta_perf_52w20o&ft=4&ta=0&o=-volume&r='); | |
| // ----------------------------------------------- | |
| /** | |
| * Grab data from finviz | |
| */ | |
| function _fc($finviz) { | |
| $ch = curl_init(); | |
| curl_setopt($ch, CURLOPT_URL, $finviz); | |
| curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); | |
| curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); | |
| $contents = curl_exec($ch); | |
| curl_close($ch); | |
| return $contents; | |
| } | |
| /** | |
| * Reformat the image URL | |
| */ | |
| function _ri($img) { | |
| $img = str_replace('chart.ashx', 'http://finviz.com/chart.ashx', $img); | |
| $img = str_replace('&s=m', '&s=l', $img); | |
| return $img; | |
| } | |
| /** | |
| * Get the XPATH of the dom | |
| */ | |
| function getXPath($page) { | |
| $init = _fc(F_BASE . $page); | |
| $dom = new DOMDocument(); | |
| $dom->loadHTML($init); | |
| $dom->preserveWhiteSpace = false; | |
| return new DOMXPath($dom); | |
| } | |
| /** | |
| * Store the charts from a specific page | |
| */ | |
| global $charts; | |
| $charts = array(); | |
| function getCharts(&$xpath) { | |
| global $charts; | |
| foreach ($xpath->query('//*[@class="charts-gal"]') AS $img) | |
| array_push($charts, _ri($img->getAttribute('src'))); | |
| } | |
| ?> | |
| <!DOCTYPE html> | |
| <html class="no-js"> | |
| <head> | |
| <style> | |
| * { | |
| -webkit-box-sizing: border-box; | |
| -moz-box-sizing: border-box; | |
| box-sizing: border-box; | |
| } | |
| body img { | |
| float: left; | |
| width: 50%; | |
| height: auto; | |
| } | |
| </style> | |
| <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/normalize/2.1.0/normalize.min.css" /> | |
| <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.0-rc2/css/bootstrap.min.css" /> | |
| </head> | |
| <body> | |
| <?php | |
| # Retrieve and store all charts from every page | |
| $xpath = getXPath('1'); | |
| getCharts($xpath); | |
| # Grab the rest, skipping page 1. | |
| $pages = $xpath->query('//*[@id="pageSelect"]')->item(0); | |
| foreach ($pages->childNodes AS $option): | |
| $p = $option->getAttribute('value'); | |
| if ($p == 1) continue; | |
| $xpath = getXpath($p); | |
| getCharts($xpath); | |
| endforeach; | |
| # Finally! Print out the charts | |
| foreach ($charts AS $chart) echo '<img src="', $chart, '" />'; | |
| ?> | |
| </body> | |
| </html> |
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