php xml get元素使用属性值

Question

I am new in php.

I want to parse emp_test.xml from url like :

<?xml version="1.0" encoding="utf-8"?>
<all_emp>
<emp_detail>
    <emp emp_name="john"><img>john_1.jpg</img></emp>
    <emp emp_name="john"><img>john_2.jpg</img></emp>
    <emp emp_name="john"><img>john_3.jpg</img></emp>
    <emp emp_name="marry"><img>marry_1.jpg</img></emp>
    <emp emp_name="marry"><img>marry_2.jpg</img></emp>
    <emp emp_name="david"><img>david_1.jpg</img></emp>
</emp_detail>
</all_emp>

To get all img has attribute is john:

$url = 'https://.../emp_test.xml';
$xml = simplexml_load_file("$url") or die("Error: Cannot create object");
foreach ($xml->xpath("//*[@emp_name='john']/img") as $node)
{
    $img = (string) $node;
    return $img;
}

I can parse xml.

But, this is reult:

john_1.jpg

How to get all img has attribute is john like?

john_1.jpg
john_2.jpg
john_3.jpg

Thank you for reading.

Answer 1

You can use like this.

            <?php
    $url = '<?xml version="1.0" encoding="utf-8"?>
    <all_emp>
    <emp_detail>
        <emp emp_name="john"><img>john_1.jpg</img></emp>
        <emp emp_name="john"><img>john_2.jpg</img></emp>
        <emp emp_name="john"><img>john_3.jpg</img></emp>
        <emp emp_name="marry"><img>marry_1.jpg</img></emp>
        <emp emp_name="marry"><img>marry_2.jpg</img></emp>
        <emp emp_name="david"><img>david_1.jpg</img></emp>
    </emp_detail>
    </all_emp>';

    $xml = simplexml_load_string($url) or die("Error: Cannot create object");
    $imgstring ='';
    foreach ($xml->emp_detail->emp as $node)
    {     
        if (strpos((string) $node->img, 'john') !== false) {
          $imgstring .= (string) $node->img.",";
        }


    }

    print_r($imgstring);
?>