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How to find the solution with string splitting? – Telegram

I have an array of strings. Something like this

$preorder[] = "
         iPhone 7/7 plusn
      n
       7 32Gb Jet B 1778 AA/A - 1 550n
       7 32Gb Jet B 1778 HN/A - 50n
       7 32Gb Jet B 1778 - 1 500n
       7 32Gb Jet B 1778 LE/A - 1 550n
       7 32Gb Jet B 1778 AH/A - 1 600n
       7 32Gb Jet B 1778 VC/A - 1 550n
       7 32Gb Jet B 1778 MY/A - 1 550n
       7 32Gb Jet B 1778 2B/A - 1 550n
      n
       7 128Gb Black 1778 2B/A - 1 550n
       7 128Gb Black 1778 VC/A - 1 550n
      n
       7 256Gb Black 1778 2B/A - 1 550n
      n
       7 128Gb Jet B 1778 VC/A - 1 550n
      n
       7 256Gb Black 1778 AH/A - 1 600n
       7 256Gb Black 1778 AA/A - 1 550n
       7 256Gb Black 1778 HN/A - 50n
       7 256Gb Red 1778 MY/A - 1 550n
      n
       7 Plus 32Gb Black 1784 2B/A - 1 800n
      n
       7 256Gb Jet B 1778 MY/A - 4 950n
       7 256Gb Jet Black 1778 - 1 500n
       7 256Gb Jet B 1778 AH/A - 1 600n
       7 256Gb Jet B 1778 HN/A - 50n
      n
       7 Plus 32Gb Silver 1784 2B/A - 5 200n
       7 Plus 32Gb Black 1784 LE/A - 1 700n
       7 Plus 32Gb Black 1784 HN/A - 50n
       7 Plus 32Gb Black 1784 - 1 700n
       7 Plus 32Gb Gold 1784 HN/A - 50n
       7 Plus 32Gb Gold 1784 LE/A - 1 700n
       7 Plus 32Gb Gold 1784 MY/A - 1 800n
       7 Plus 32Gb Rose 1784 MY/A - 5 200n
      n
       7 Plus 128Gb Black 1784 2B/A - 5 200n
        ";

This is a list of some products and I will send it to telegram. But telegram has limit on message length. So if my message have more than 4000 chars I need to split it to 2 messages.

But it’s bad solution to split this string by empty line. So i have no idea how can I make this string looks like 

$msg[] = "
         iPhone 7/7 plusn
      n
       7 32Gb Jet B 1778 AA/A - 1 550n
       7 32Gb Jet B 1778 HN/A - 50n
       7 32Gb Jet B 1778 - 1 500n
       7 32Gb Jet B 1778 LE/A - 1 550n
       7 32Gb Jet B 1778 AH/A - 1 600n
       7 32Gb Jet B 1778 VC/A - 1 550n
       7 32Gb Jet B 1778 MY/A - 1 550n
       7 32Gb Jet B 1778 2B/A - 1 550n
      n
       7 128Gb Black 1778 2B/A - 1 550n
       7 128Gb Black 1778 VC/A - 1 550n";
       $msg[]="
      n
       7 256Gb Black 1778 2B/A - 1 550n
      n
       7 128Gb Jet B 1778 VC/A - 1 550n
      n
       7 256Gb Black 1778 AH/A - 1 600n
       7 256Gb Black 1778 AA/A - 1 550n
       7 256Gb Black 1778 HN/A - 50n
       7 256Gb Red 1778 MY/A - 1 550n";
       $msg[] = "
      n
       7 Plus 32Gb Black 1784 2B/A - 1 800n
      n
       7 256Gb Jet B 1778 MY/A - 4 950n
       7 256Gb Jet Black 1778 - 1 500n
       7 256Gb Jet B 1778 AH/A - 1 600n
       7 256Gb Jet B 1778 HN/A - 50n
      n
       7 Plus 32Gb Silver 1784 2B/A - 5 200n
       7 Plus 32Gb Black 1784 LE/A - 1 700n";
       $msg[] = "
       7 Plus 32Gb Black 1784 HN/A - 50n
       7 Plus 32Gb Black 1784 - 1 700n
       7 Plus 32Gb Gold 1784 HN/A - 50n
       7 Plus 32Gb Gold 1784 LE/A - 1 700n
       7 Plus 32Gb Gold 1784 MY/A - 1 800n
       7 Plus 32Gb Rose 1784 MY/A - 5 200n
      n
       7 Plus 128Gb Black 1784 2B/A - 5 200n
        ";

So I want to split string by parts and make an array of them and then just send it to telegram. My string may have 20000 chars length. So I need dynamic way to split it.
Any suggestions? Thx!

Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    I solved my problem.

    $lines = preg_split ('/$R?^/m',  $preorder[1]);
        $arrays = array_chunk($lines,100);
        $new_line = [];
        foreach($arrays as $key => $value) {
            $new_line[] = implode("rn",$value);
        }

    Thank you @sietse85 for array_chunk.


  2. 0

    You can loop the exploded array of new line and count the number of characters in each line.
    Sum it in a msgcount and keep adding to the string as long as you are below 4000 characters, once you go above 4000 split it and create a new array item.
    Once all looping is done, you still have on message in the str, add that too and your done.
    I added the count in the array also.

    $msgcount = 0;
$str = "";
foreach(explode(PHP_EOL, $preorder[0]) as $item){
    $line = trim($item);
    $count = strlen($line);
    if($line == "") continue;

    if($msgcount + $count <= 4000){
        $str .= PHP_EOL . $line;
        $msgcount += $count+1;
    }else{
        $new[] = ["msg" => trim($str), "count" => $msgcount-1];
        $str = "";
        $msgcount = 0;
    }
}

$new[] = ["msg" => trim($str), "count" => $msgcount-1];


var_dump($new);

    https://3v4l.org/JLPoU

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