Parsing XML with PHP

I'm trying to parse a jobs feed using PHP's SimpleXML. I've only used JSON before and am having problems getting the parser to work. Here's some sample data:

<shrs>
    <rq url="http://api.simplyhired.com/a/jobs-api/xml_v2/q-comission">
        <t>Comission Jobs</t>
        <dt>2011-02-18T23:58:38Z</dt>
        <si>0</si>
        <rpd>10</rpd>
        <tr>192</tr>
        <tv>146</tv>
        <em url=""/>
        <h>
            <kw pos="1"/>
        </h>
    </rq>
    <rs>
        <r>
            <jt>Virtual Recruiter (IT) - Comission ...</jt>
            <cn url="">Remedy Intelligent Staffing</cn>
            <src url="http://api.simplyhired.com/a/job-details/view/jobkey-monster91949932/cjp-0/hits-192?aff_id=28700">Monster</src>
            <ty>organic</ty>
            <loc cty="Buffalo" st="NY" postal="14211" county="" region="" country="US">Buffalo, NY</loc>
            <ls>2011-02-04T05:51:17Z</ls>
            <dp>2011-02-04T05:51:17Z</dp>
            <e>
    Seeking a candidate with previous recruiting experience to work as a Virtual Recruiter for a large client in the IT industry.a Responsibilities: Will recruit, screen, interview, and place candidates for many openings throughout the US Will...
    </e>
        </r>
        <r>
            <jt>Virtual Loan Officer (Mortgage) draw vs comission</jt>
            <cn url="">Netbranchology.com</cn>
            <src url="http://api.simplyhired.com/a/job-details/view/jobkey-7114.353281/cjp-2/hits-192?aff_id=28700">netbranchology.com</src>
            <ty>organic</ty>
            <loc cty="Denver" st="CO" postal="80218" county="" region="" country="US">Denver, CO</loc>
            <ls>2011-02-10T11:47:50Z</ls>
            <dp>2011-01-26T11:36:18Z</dp>
            <e>
    Minimize your overhead by becoming a virtual loan officer... Our client, a Texas-based mortgage banker, has just launched an innovative new program that lets you work from anywhere to originate residential mortgage loans. No office is...
    </e>
        </r>
    </rs>
</shrs>

[etc]

I'd like to retrieve the metadata in the tags into variables, and then loop through each job result under to process it. How can I do this with PHP? (I've been pla开发者_运维知识库ying around with the SimpleXML functions so far)

Nodes are accessed as object properties, attributes use the array notation. foreach lets you iterate over nodes. You can get the content of a node by casting it as a string. (so if you use echo it's implied)

$shrs = simplexml_load_string($xml);

foreach ($shrs->rs->r as $r)
{
    $jobTitle = $r->jt;
    $city = $r->loc['cty'];

    echo "There's an offer for $jobTitle in $city<br />\n";
}

Try SimpleXML: http://www.php.net/manual/en/book.simplexml.php

It will parse your XML into a nice object.

Edit: here's how to use it (assumes your xml is stored in the variable $xml):

$xmlObject = new SimpleXMLElement($xml);

// to retrieve "http://api.simplyhired.com/a/jobs-api/xml_v2/q-comission"
$url = $xmlObject->rq['url'];

// to retrieve "Comission Jobs"
$t = $xmlObject->rq->t;
...

Hope it helps.