Split a string into two equal length parts using PHP

Question

I need to split a string into two equal length parts.String can contain blank spaces, commas or anything. I have referred and tries the code sample of explode statement from the link http://www.testingbrain.com/php-tutorial/php-explode-split-a-string-by-string-into-array.html but there it not showing any sample for splitting by equal length.

One more thing, while splitting words shouldn't broken.

If you want to split string without breaking words, look at this: http://stackoverflow.com/a/11256141/4832775 — Firas Rassas, Oct 17 '15 at 09:58

score 4 · Answer 1 · edited Oct 17 '15 at 10:08

This will split without breaking the word, at the most possible half of the text, but it may split at any other characters (,,.,@ etc)

$data = "Split a string by length without breaking word"; //string

if (strlen($data) % 2 == 0) //if lenhth is odd number
    $length = strlen($data) / 2;
else
    $length = (strlen($data) + 1) / 2; //adjust length

for ($i = $length, $j = $length; $i > 0; $i--, $j++) //check towards forward and backward for non-alphabet
{
    if (!ctype_alpha($data[$i - 1])) //forward
    {
        $point = $i; //break point
        break;
    } else if (!ctype_alpha($data[$j - 1])) //backward
    {
        $point = $j; //break point
        break;
    }
}
$string1 = substr($data, 0, $point);
$string2 = substr($data, $point);

score 1 · Answer 2 · edited Oct 17 '15 at 10:19

1

here you go.

$str="Test string";
$middle=strlen($str)/2;
$first=substr($str,0,$middle);
$last=substr($str,$middle);

edited Oct 17 '15 at 10:19

Reeno

5,720
11
37
50

answered Oct 17 '15 at 09:48

Marty Krishner

74
6

2

this isn't solving the problem of split words. – fico7489 Oct 17 '15 at 10:01

score 0 · Answer 3 · answered Oct 17 '15 at 09:59

I think this is are good start:

$string = "My name is StackOcerflow and I like programming, one more comma. Next sentance.";
$words = preg_split( "/( )/", $string );
print_r($words);

$length = 0;
foreach($words as $word){
    $length += strlen($word);
}

$string_new = "";
$string_new2 = "";
$length_half = 0;
foreach($words as $word){
    $length_half += strlen($word);
    if($length_half >= ($length/2)){
        $string_new2 .= $word . ' ';
    }else{
        $string_new .= $word . ' ';
    }
}
echo '<br/><br/>';
echo 'Full=' . $string . '<br/>';
echo 'First=' . $string_new . '<br/>';
echo 'Second=' . $string_new2 . '<br/>';
echo 'First length=' . strlen($string_new) . '<br/>';
echo 'Second=' . strlen($string_new2) . '<br/>';

Split a string into two equal length parts using PHP

3 Answers3