Split Strings in Half (Word-Aware) with PHP

Question

I\'m trying to split strings in half, and it should not split in the middle of a word.

So far I came up with the following which is 99% working :

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Answer 1

I know this is an old question, but I have the following piece of code that should do what is needed.

It by default it splits the string on the first occurrence of a space after the middle. If there are no spaces after the middle, it looks for the last space before the middle.

function trim_text($input) {
    $middle = ceil(strlen($input) / 2);
    $middle_space = strpos($input, " ", $middle - 1);

    if ($middle_space === false) {
        //there is no space later in the string, so get the last sapce before the middle
        $first_half = substr($input, 0, $middle);
        $middle_space = strpos($first_half, " ");
    }

    if ($middle_space === false) {
        //the whole string is one long word, split the text exactly in the middle
        $first_half = substr($input, 0, $middle);
        $second_half = substr($input, $middle);
    }
    else {
        $first_half = substr($input, 0, $middle_space);
        $second_half = substr($input, $middle_space);
    }
        return array(trim($first_half), trim($second_half));
}

These are examples:

Example 1:

"WWWWWWWWWW WWWWWWWWWW WWWWWWWWWW WWWWWWWWWW"

Is split as

"WWWWWWWWWW WWWWWWWWWW"

"WWWWWWWWWW WWWWWWWWWW"

Example 2:

"WWWWWWWWWWWWWWWWWWWW WWWWWWWWWW WWWWWWWWWW"

Is split as

"WWWWWWWWWWWWWWWWWWWW"

"WWWWWWWWWW WWWWWWWWWW"

Example 3:

"WWWWWWWWWW WWWWWWWWWW WWWWWWWWWWWWWWWWWWWW"

Is split as

"WWWWWWWWWW WWWWWWWWWW"

"WWWWWWWWWWWWWWWWWWWW"

Example 4:

"WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW"

Is split as

"WWWWWWWWWWWWWWWWWWWW"

"WWWWWWWWWWWWWWWWWWWW"

Hope this can help someone out there :)