PHP explode help

Placebo

doing some screen scraping so i have a table of values.
Table is split into rows and put into variables.

to do so ive had to use something like ${'var'.$i } to increment the variable name
[PHP] ${'var'.$i } = $data[$i] ;[/PHP]

so
var1= "a b c d e f g h i j k l";
:
:
etc


now i wanna use explode, so i can get rid of spaces and have values in an array.
I.e
var1[0] = a
var2[1] = b

but something like
[PHP]${'pic'.$i } = explode(" ", ${'var'.$i });[/PHP]
doesnt work

Liam Byrne

Placebo wrote: »

doing some screen scraping so i have a table of values.
Table is split into rows and put into variables.

to do so ive had to use something like ${'var'.$i } to increment the variable name
[PHP] ${'var'.$i } = $data[$i] ;[/PHP]

so
var1= "a b c d e f g h i j k l";
:
:
etc


now i wanna use explode, so i can get rid of spaces and have values in an array.
I.e
var1[0] = a
var2[1] = b

but something like
[PHP]${'pic'.$i } = explode(" ", ${'var'.$i });[/PHP]
doesnt work

Are you trying to put "a b c d" into ONE array or different arrays ?

You're setting var1[0] to "a", and var2[1] to "b" ?

What are you setting var2[0] to ?

And what value does $i have ?

Try

echo $i. " : ".explode(" ", ${'var'.$i });

to see what PHP sees, before continuing on.

And if that doesn't work, try a simple

echo explode(" ", $var1);

Placebo

i just checked,
and basically it works when i explicitly declare an array but not when the programs fills it in, so im assuming there is something wrong with my filler code

[PHP]<?php
function file_get_contents_curl($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $url);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}

$HTML = file_get_contents_curl("http://localhost:8080/recommend_pos.htm");


$dom = new DOMDocument();
$dom->preserveWhiteSpace = TRUE;
@$dom-&gt;loadHTML($HTML);

$xpath = new DOMXPath($dom);


//Long

$nodes = $xpath->query('/html/body/table[8]');


$i = 0;

foreach ($nodes as $node) {


$cols = $node->getElementsByTagName('tr');

foreach($cols as $cole)
{
$data2[$i] = $cols->item($i)->nodeValue;
// $data[$i] = str_replace("Â", "", $data2[$i]);
// $data3[$i] = str_replace(" ", "1", $data[$i]);
//${'var'.$i } = $data[$i];



$i++;

}
}

?>
[/PHP]

just tested filler by printing out
echo $data2[1] outside of the loop and it seems fine


//explodes fine with anything but the space, assuming its to do with dom/array

Liam Byrne

Are you sure it's an actual space, and not an   or something else ?

Is there a way that you can check ?

Placebo

i kinda tested it out and seemed to be extra white spaces, so i used a regular expression to kinda get rid of it and subsitute space with # for easier explosion, this gonna slow down the script slightly so im gonna have to revisit the dom part again

[PHP] ${'var'.$i} = $cols->item($i)->nodeValue;
${'vars'.$i} = str_replace("Â", "", ${'var'.$i} );
${'varx'.$i} = preg_replace('/\s\s+/', '#', ${'vars'.$i});

${'pic'.$i} = explode("#", ${'varx'.$i});[/PHP]

thanks for your help,
any dom/php experts - advice appreciated

Liam Byrne

If the reg exp works, just use the reg ex as the explode "needle".

http://ie2.php.net/split