Accessing array values in PHP

Question

Please can someone tell me what I am doing wrong? I am trying to retrieve all the data in the array below in PHP and I am having problems doing this. Here is the example:

<?php

$url = 'http://www.example.com/';

if (!$fp = fopen($url, 'r')) {
    trigger_error("Unable to open URL ($url)", E_USER_ERROR);
}

$meta = stream_get_meta_data($fp);

print_r($meta);

foreach($meta as $key=>$value) {
    echo '<br>'.$value;

}

fclose($fp);

?>

The foreach loop above permit me to loop through and retrieve all the data in the array, but my questions are:

How can I retrieve only the value http of [wrapper_type] and other values independently?
How can I retrieve only one value of [wrapper_data] => Array without retrieving all the values together?
What is the index number or value to access these data?

What is the index number or value to access these data? - this questions is unclear. — Federkun
– Federkun, Commented Jan 21, 2016 at 22:17
wrapper_data array will be variable as it is based on the headers and is in the order that the headers were received. — AbraCadaver
– AbraCadaver, Commented Jan 21, 2016 at 22:17

miken32 · Accepted Answer · 2016-01-21 22:15:53Z

2

This is pretty basic stuff; you may want to do some reading up on PHP basics before progressing further. Nevertheless...

How can I retrieve only the value http of [wrapper_type] and other values independently?

$type = $meta["wrapper_type"];
echo $type;

How can I retrieve only one value of [wrapper_data] => Array without retrieving all the values together?

$the_fourth_header = $meta["wrapper_data"][4];
echo $the_fourth_header;

answered Jan 21, 2016 at 22:15

miken32

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2 Comments

Kelly Over a year ago

Hi Miken, thanks for taking the time to respond. I appreciate it. I will do as you suggested. Thanks.

Kelly Over a year ago

I already voted up your response and it says I need to earn a total of 15 reputation before the vote would appear. Thanks once again.

Federkun · Accepted Answer · 2016-01-21 22:16:20Z

2

How can I retrieve only the value http of [wrapper_type]

Just with $meta['wrapper_data']

How can I retrieve only one value of [wrapper_data]

The same, Array elements can be accessed using the array[key] syntax: $meta['wrapper_data'][0], $meta['wrapper_data'][1], ...

answered Jan 21, 2016 at 22:16

Federkun

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Comments

Gagan Upadhyay · Accepted Answer · 2016-01-22 09:04:28Z

-1

just use 'wrapper_type' index in your array($meta).

$type = $meta["wrapper_type"];
echo $type;

answered Jan 22, 2016 at 9:04

Gagan Upadhyay

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