Convert array result into integer for calculating - php

Question

I have a little problem with an array.
I have an array which looks like this:
Array
(
[start] => Array
(
[0] => 15168
)
[ende] => Array
(
[0] => 43
)
[string] => Array
(
[0] => 1050
)
)
The number I need is 1050. So I get it like this:
$number = $tabelle['string'][0];
Now my problem is that I can't use it in calculations. I already tried to convert it into an integer with the following line:
$number = intval($tabelle['string'][0]);
But this doesn't work. I always get 0 for $number. How to do it properly? I already searched on Google for about 2 hours.
Best regards
My whole script:
<?php
class data_pars {
var $datei;
var $read_laenge = 2000;
var $result;
function set_datei($datei) {
$this->datei = $datei;
}
function read($start,$ende) {
$file = #fopen ($this->datei,"r");
while (!feof($file)) {
$inhalt .= fgets($file,$this->read_laenge);
}
if(!$start) $start = 0;
if(!$ende) $ende = strlen($inhalt);
if($ende > strlen($inhalt)) $ende = strlen($inhalt);
$this->result = substr($inhalt,$start,$ende);
}
function get_result() {
return $this->result;
}
function get_in_out($in,$out,$in_out) {
$anzahl_ende = strlen($out);
$anzahl_start = strlen($in);
$start = 0;
$anzahl = substr_count($this->result, $in);
$count = 0;
if(!$in_out) {
$ad_start = $anzahl_start;
$ad_ende = $anzahl_ende;
}
while($count < $anzahl) {
$ar_start = strpos($this->result, $in, $start);
$ar_ende = strpos($this->result, $out, $ar_start + $anzahl_start);
$ar_string = substr($this->result,$ar_start + $ad_start, $ar_ende - $ar_start + $anzahl_ende - $ad_ende - $ad_start);
$output[start][] = $ar_start;
$output[ende][] = $ar_ende - $ar_start + $anzahl_ende;
$output[string][] = trim($ar_string);
$start = $ar_start + $anzahl_start;
$count++;
}
return $output;
}
}
$data = new data_pars();
$data->set_datei('http://www.elitepvpers.com/theblackmarket/profile/6005376');
$data->read('0','20000');
$tabelle = $data->get_in_out('<td>elite*gold:</td>','</td>',false);
$number = intval($tabelle['string'][0]);
echo '<pre>';
print_r($tabelle);
echo '</pre>';
echo $number;
?>
So I always get 0 for $number instead of 1050;

Answer 1

You did 2 main errors:
1. You have to initialize $inhalt before your while loop like this:
$inhalt = "";
while (!feof($file)) {
$inhalt .= fgets($file,$this->read_laenge);
}
2. You forgot to put quotes around the indexes:
$output["start"][] = $ar_start;
$output["ende"][] = $ar_ende - $ar_start + $anzahl_ende;
$output["string"][] = trim($ar_string);
And now why did your intval() failed? Because if you right click and show source you will see in the array the value is:
<td>1050
So this can't convert to a int! And the <td> you don't see, because it's a html tag
Now you can easy extract only the number with this lines:
$tabelle["string"]["0"] = filter_var($tabelle["string"]["0"], FILTER_SANITIZE_NUMBER_INT);
echo $number = intval($tabelle["string"]["0"]);
Output:
1050

Answer 2

If I understand your code and logic correctly.
try replace:
$output[start][] = $ar_start;
$output[ende][] = $ar_ende - $ar_start + $anzahl_ende;
$output[string][] = trim($ar_string);
to this:
$
output['start'][] = intval($ar_start);
$output['ende'][] =intval( $ar_ende - $ar_start + $anzahl_ende);
$output['string'][] = intval(trim($ar_string));