PHP parse javascript

Question 1

I am utilizing the HTML DOM Parser for PHP and am having difficult trying to extract the coordinates out of this javascript. Any clue how to? Thanks.

<script type="text/javascript">
//<![CDATA[
 LoadMarker(parseFloat(45.5364416896354),parseFloat(-122.959525248125), 'seizures', '141101942', 'wccca');
 LoadMarker(parseFloat(45.3885251463509),parseFloat(-122.813856693134), 'cardiac arrest', '141101935', 'wccca');
 resizeIncidentScrollBar('#wccca-incidents');
 LoadMarker(parseFloat(45.3926967266394),parseFloat(-122.622226603465), 'chest pain', '141101208', 'ccom');
 LoadMarker(parseFloat(45.266375649134),parseFloat(-122.676613858032), 'hemorrhage', '141101206', 'ccom');
 LoadMarker(parseFloat(45.0866856873256),parseFloat(-122.667733219612), '*m82', '141101198', 'ccom');
 resizeIncidentScrollBar('#ccom-incidents');
 updateMarkers();
 Sys.Application.initialize();
 Sys.Application.add_init(function() {
 $create(Sys.UI._Timer, {"enabled":true,"interval":2000,"uniqueID":"tmrIncidents"}, null, null, $get("tmrIncidents"));
 });
//]]>
</script>

PHP:

<?php
include 'simple_html_dom.php';
// Get WCCCA's html file
$html = file_get_html('http://www.wccca.com/PITSv2/');
$node = $html->find('script[type=text/javascript]', 4);
$DOMelement = array("LoadMarker(parseFloat(45.5364416896354),parseFloat(-122.959525248125)");
preg_match_all('/\d+(\.\d+)?/', $DOMelement[0], $matches); 
print_r($matches[0]);
?>

Question 2

What exactly isn't working?

Question 3

Just trying to figure out to extract the coordinates.

Question 4

Hes asking how to extract the valuse 45.5367, and -122.95596 using PHP DOM parser. Its possible, using preg match. stackoverflow.com/questions/19471285/…

Question 5

I just ran it and it worked perfectly. Do you have the included file in the same directory? Try running it at the command line (if you aren't already) and tell us what you see. (To run at the command line, you do php nameofyourfile.php.)

Question 6

Try followed regexp:

preg_match_all(/parseFloat\(([^\)]+)/, $js, $matches);
print_r($matches[1]);

Question 7

This returns $matches[0] = parseFloat( $matches[1] = 4. sandbox.onlinephpfunctions.com/code/…

Question 8

thanks, added forgetten +, and you use preg_match in your fiddle instead of preg_match_all in my answer

Question 9

Try using preg_match

 preg_match ($pattern, $DOMelement, $matches);

Pattern to look for floats/coordinates.

 '/\d+(\.\d+)?/'

So basically like this

// Simulation of your DOM element
$DOMelement = array("LoadMarker(parseFloat(45.5364416896354),parseFloat(-122.959525248125)");
preg_match_all('/\d+(\.\d+)?/', $DOMelement[0], $matches); 
returns
[0] => Array
 (
 [0] => 45.5364416896354
 [1] => 122.959525248125
 )

Example here...

http://sandbox.onlinephpfunctions.com/code/d026735963c62fc532d3d6442dfdebc14ca580b1

Although it will also find decimals, of those floats. Which is not ideal. But the values you want will be in the 1st index. As you can see in the example link

Based on your update...

If the script is in the same spot on the page all the time

$html = file_get_html('http://www.wccca.com/PITSv2/');
$node = $html->find('script', 0);
preg_match_all('/\d+(\.\d+)?/', $node->nodeValue;, $matches);

Question 10

I understand how to do this part, its traversing the DOM elements to find the "LoadMarker..." text in the first place.

Question 11

Are they not just inside script elementS?

Question 12

@Jon You should try to be more specific in your question. Please add code to show us what you've done so far. Guessing at your problem when we have no code is a waste of time (for you as well).

Question 13

They are, but I am having a hard time getting to this specific script element.

Question 14

Well, you should rephrase the question, because your question asks how to get the Coordinates. Not how to get the script tags

vp_arth 15k4 gold badges43 silver badges72 bronze badges · Accepted Answer · 2014-11-14 04:05:03Z

1

Try followed regexp:

preg_match_all(/parseFloat\(([^\)]+)/, $js, $matches);
print_r($matches[1]);

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edited Nov 14, 2014 at 4:39

answered Nov 14, 2014 at 4:05

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vp_arth

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2 Comments

Kylie

Kylie Over a year ago

This returns $matches[0] = parseFloat( $matches[1] = 4. sandbox.onlinephpfunctions.com/code/…

2014年11月14日T04:08:38.23Z+00:00

vp_arth

vp_arth Over a year ago

thanks, added forgetten +, and you use preg_match in your fiddle instead of preg_match_all in my answer

2014年11月14日T04:40:30.87Z+00:00

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