Convert number sequence to array in PHP - php

Question

Kinda of a noobie in PHP and Regex, I receive the following from a web service:
test:002005#1111#333333#;10205#2000#666666#;002005#1111#55555#;
The above line is a sequence of 3 numbers which repeats 3 times. I would like to get the 3rd number of each sequence and I believe the best course (besides 3000 explodes) would be preg_match_all but I am having a tough time wrapping my mind around RegEx.
The end result should look like this:
Array
(
[0] => 333333
[1] => 666666
[2] => 55555
)
Thanks in advance for any help.

Answer 1

if(preg_match_all('/.*?(?:\d+#){2}(\d+)#;/',$s,$m)) {
print_r($m[1]);
}
http://ideone.com/99M9t
or
You can do it using explode as:
$input = rtrim($input,';');
$temp1 = explode(';',$input);
foreach($temp1 as $val1) {
$temp2 = explode('#',$val1);
$result[] = $temp2[2];
}
print_r($result);
http://ideone.com/VH29g

Answer 2

Use the function explode()
<?php
$pizza = "piece1#piece2#piece3#piece4#piece5#piece6";
$pieces = explode("#", $pizza);
echo $pieces[0]; // piece1
echo $pieces[1]; // piece2
?>

Answer 3

I don't remember exactly how the saying goes but...
"You have a problem and decide to use regular expressions... now you have two problems."
Your problem can easily be solved if we assume 'test:' isn't part of the actual string to be parsed.
<?php
$in = '002005#1111#333333#;10205#2000#666666#;002005#1111#55555#;';
function splitGroupsAndGetColumn($input, $groupSeparator, $columnSeparator, $columnIndex, $skipEmpty=true)
{
$result = array();
$groups = explode($groupSeparator, $input);
foreach($groups as $group)
{
$columns = explode($columnSeparator, $group);
if (isset($columns[$columnIndex]))
{
array_push($result, $columns[$columnIndex]);
}
else if (! $skipEmpty)
{
array_push($result, NULL);
}
}
return $result;
}
var_dump(splitGroupsAndGetColumn($in, ';', '#', 2));
Output:
array(3) {
[0]=>
string(6) "333333"
[1]=>
string(6) "666666"
[2]=>
string(5) "55555"
}

Answer 4

You could use preg_match_all for this task, which makes the task quite simple:
$a = "test:002005#1111#333333#;10205#2000#666666#;002005#1111#55555#;";
preg_match_all('/#(\d+)#;/', $a, $m);
print_r($m);
$m[1] contains the output, you want.
Reference: http://php.net/manual/en/function.preg-match-all.php

Answer 5

My version :)
The regex (\d+) means I want all that is a number one or more
php > $a = '002005#1111#333333#;10205#2000#666666#;002005#1111#55555#';
php > preg_match_all('/(\d+)/',$a,$matches);
php > var_dump($matches);
array(2) {
[0]=>
array(9) {
[0]=>
string(6) "002005"
[1]=>
string(4) "1111"
[2]=>
string(6) "333333"
[3]=>
string(5) "10205"
[4]=>
string(4) "2000"
[5]=>
string(6) "666666"
[6]=>
string(6) "002005"
[7]=>
string(4) "1111"
[8]=>
string(5) "55555"
}
[1]=>
array(9) {
[0]=>
string(6) "002005"
[1]=>
string(4) "1111"
[2]=>
string(6) "333333"
[3]=>
string(5) "10205"
[4]=>
string(4) "2000"
[5]=>
string(6) "666666"
[6]=>
string(6) "002005"
[7]=>
string(4) "1111"
[8]=>
string(5) "55555"
}
}