extract specific value from multidim.(?) array

[cla]

Hi, i'm new here, and i need modify some php code but i'm not able to do..

maybe is a stupid question

 

i think this is a multidimensional array

<?php print_r(array_keys($image)); ?>

print: Array ( [0] => post_id [1] => title [2] => content [3] => image [4] => url [5] => url_openblank )

 

<?php echo $image['image'] ?>

 

echo me the images with all attribute

<img width="570" height="570" src="http://wordpressfresh:8888/wp-content/uploads/2014/05/anteprima-03.jpg" class="attachment-full wp-post-image" alt="anteprima-03" />  

 

what I need is only the src value, how can I get it?

 

thanks in advance

claudio

 

 

[adam_bray]

Looks like a normal array with keys.

 

Try this - 

echo $image['url'];

[cla]

Hi Adam,

 

thanks for the replay but this not work for me.. i get an empty echo

 

<?php echo " >> " ,  $image['url'] , " < .. empty"; ?>

 

print :

>>  < .. empty

 

 

But I need the src value inside the image [4] value and not the url [5]

 

I think the image [4] is another array,

 

If I call it

<?php echo $image['image'] ?>

 

I get  the image tag with all attribute

<img width="570" height="570" src="http://wordpressfres...nteprima-03.jpg" class="attachment-full wp-post-image" alt="anteprima-03" />

 

and if I call this

 

<?php echo  $image['image'][0]  ?>

 

or other index number I get the < for 0, i for 1, m for 2 an so on..

 

I think there is a way to get the src value but my php is like my english

 

Claudio

[Jacques1]

Hi,

 

we can speculate all day long about what the array might contain. But it would be much easier if you simply inspected it:

var_dump($image);

What does that say?

[cla]

Hi,

 

yes is a multidimensional array..

 

i get this:

 

array(6) {
["post_id"]=>
int(44)
["title"]=>
string( "titolo 1"
["content"]=>
string(11) "excerpt uno"
["image"]=>
string(166) "<img width="570" height="570" src="http://wordpressfresh:8888/wp-content/uploads/2014/05/anteprima-03.jpg" class="attachment-full wp-post-image" alt="anteprima-03" />"
["url"]=>
string(0) ""
["url_openblank"]=>
bool(false)
}

 

 

do you think is possible get the specific value of the src inside the string?

[Ch0cu3r]

Use regex on $image['image'] to get the value of the src attribute

preg_match('~src="([^"]+)"~', $image['image'], $m);
$image_src = $m[1];

[trq]

yes is a multidimensional array..

Nope, it is not.

[cla]

Hi,

 

yes image is a string so is a normal array..

and the regex expression is the rigth way

 

thank yuo all !!

 

Claudio

[Ch0cu3r]

 

 

yes image is a string so is a normal array..

No, an array is an array. A string is a string. Just that PHP allows you to treat a sting like an array. This is due to PHP loosely coupled nature.

[cla]

Hi, just to calrify me, what I mind is:

 

in this case $image is the array taht contain n variable

Array ( [0] => post_id [1] => title [2] => content [3] => image [4] => url [5] => url_openblank

 

and the variable 'image'  inside the array $image is a string composet with all the attribute of the image

["image"]=>
string(166) "<img width="570" height="570" src="http://wordpressfresh:8888/wp-content/uploads/2014/05/anteprima-03.jpg" class="attachment-full wp-post-image" alt="anteprima-03" />"

 

rigth?

 

best regards

claudio

[Ch0cu3r]

 

 

in this case $image is the array taht contain n variable

Yes $image is a variable which holds an associative array, which contains 6 keys called post_id, title, content, image, url and url_openblank

 

 

 

and the variable 'image'  inside the array $image is a string composet with all the attribute of the image

The image key has a string assigned to it. Only you will be able understand that the individual characters used in the string creates the mark-up for an HTML img tag. PHP will not it will just see it as a bunch of random characters.

[cla]

 PHP will not it will just see it as a bunch of random characters.

 

For that we have to use the regex expressions .. thanks alot

[Ch0cu3r]

For that we have to use the regex expressions .. thanks alot

Yes, for something like that yes. But if you're dealing with more complex HTML you'd pass in the html string to the DOM object (or the simple html helper library) and the use the nesscary methods to get the data you require