extract JavaScript value from page web by (PHP)

Question

i need to extract a value (id value) from html web page . this value
is included in JavaScript code .

<script type="text/JavaScript">
var geoInstance = gioFinder("geo");
geoInstance.setup({
    id: "126568949", // i need this
    geometre: "triangle",
    type: "html",
    image: 'https://example/126568949.jpg',
});
</script>

my code php is

    <?php
    $filename = "https://examlpe.com";
    $handle = fopen($filename, "r");
    if ($handle) {
        while (!feof($handle)) {
            $text. = fread($handle, 128);
        }
        fclose($handle);
    }

    // How can you do

//right answer is . 
$result = preg_match('/(?<=id: ")(.*)(?=",)/', $text, $matches);

echo $matches[0];
//end

    ?>

Essentially what you are asking is how to write a text parser for the specific case above. Where is your attempts at this? Not just opening a file and reading it block by block. Where is your code that does the parsing? — GetSet
– GetSet, Commented Jan 30, 2020 at 18:31
What exactly do you know about your “needle”? That it’s always a 9-digit number? That its always the id property in this geoInstance parameter? This question could use a bit of clarity. — 1252748
– 1252748, Commented Jan 30, 2020 at 20:23
Please do not use block quotes to highlight paragraphs. Look at posts from experienced users, and copy their style - people will spend more time on your question if you format it properly. — kimbert
– kimbert, Commented Jan 30, 2020 at 20:45
Since you've implemented the code from my answer, is it working now or are you still having issues? — PaulS
– PaulS, Commented Jan 30, 2020 at 21:39

PaulS · Accepted Answer · 2020-01-30 20:11:32Z

2

You could read the file as a string and then use RegEx to find the specific value.

An example for your case could be the RegEx pattern (?<=id: ")(.*)(?=",).

Then use preg_match: preg_match('(?<=id: ")(.*)(?=",)', $html);

edited Jan 30, 2020 at 20:11

answered Jan 30, 2020 at 18:33

PaulS

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1 Comment

BENKHALDOUN Over a year ago

Correct the answer $result = preg_match('/(?<=id: ")(.*)(?=",)/', $text, $matches);

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