Gfrktyl

I'm parsing large HTML documents and pulling out certain values. They all share a common top path; however, I want to add logic within the loop to determine the appropriate parsing logic.

$xpath = new DOMXpath($doc);

$data_array = array();



$table_nodes = $xpath->query("///html/body/div/div[1]/div[2]/table/tbody/tr/td/center/table[1]/tbody/tr/td/table[2]/tbody/tr/th/*");



foreach($table_nodes as $table_node) {

    // Check if date exists

    $xpath_query_date = trim($xpath->evaluate("string(./tbody/tr/td[1]/table/tbody/tr[1]/td/table/tbody/tr[1]/td[1])", $table_node));

    if(isset($xpath_query_date)) {

        $data_array['date'] = trim($xpath_query_date);

    }



    // Check if pricing exists

    $xpath_query_pricing = trim($xpath->evaluate("string(./tbody/tr[5]/td[3]/span)", $table_node));

    if(isset($xpath_query_pricing)) {

        $data_array['pricing'] = $xpath_query_pricing;

    }



    ...

}

The example above evaluates a path to a couple of the values I need.

However, I need to check about 15 values and I'm using the loop because I don't know the position of where the values sit in each document. Meaning I don't know which parent /tbody/tr/td[1]/table/tbody/tr[1]/td/table/tbody/tr[1]/td[1] will appear, for example.

How can I more easily check whether the value I need exists within the loop?

Update

There's really nothing more to the document than beyond what's posted here. Values that I need to parse have an XPath's such as

/html/body/div/div[1]/div[2]/table/tbody/tr/td/center/table[1]/tbody/tr/td/table[2]/tbody/tr/th/table[7]/tbody/tr[1]/td[1]/table/tbody/tr[1]/td/table/tbody/tr[1]/td[1]

However, the table index may differ (table[7] vs table[8]) between documents, even though it's the same entity.

/html/body/div/div[1]/div[2]/table/tbody/tr/td/center/table[1]/tbody/tr/td/table[2]/tbody/tr/th/table[8]/tbody/tr[1]/td[1]/table/tbody/tr[1]/td/table/tbody/tr[1]/td[1]

Therefore, I need to check the tail part of the query.