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I have text with multiple lines. Say, its 100 lines. Every four lines together make a single block of data. So, I want to explode data into array after every 4 lines. is there any thing in PHP to achieve this thing?

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  • 1
    Lines in a text file or a string? Commented May 15, 2014 at 14:38
  • 1
    Yes, loops and conditions. Commented May 15, 2014 at 14:38
  • Also an example of the text. Commented May 15, 2014 at 14:40

2 Answers 2

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Not directly. But you can split first the data and then re-implode() it in chucks of four:

$split = explode("\n", $data);
while (!empty($split)) {
    $array[] = implode("\n", array_splice($split, 0, 4));
}
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@nl-x yes, you're right, explode is guaranteed to return an array with a least one element if valid input is passed.
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Here you go: 

$tmp = explode("\n", $data);
$fours = array();
for($i = 0; $i < count($tmp); $i++)
    if ($i % 4 == 0)
        $fours[count($fours)] = $tmp[$i];
    else
        $fours[count($fours) - 1] .= "\n" . $tmp[$i];
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