PHP Split array at space before certain qty of characters - php

Question

I have an application that can only deal with text up to 100 characters in length per line.
However I do not want to be splitting mid-word in a sentence as that doesn't look very nice. Therefore we would need to find the space before the 100th Character and then add it into the array.
I was thinking using strrpos would work - but am unsure how to do the continuing so it has everything in one array
$textToDraw = 'this is a message that is over 100 characters long just to see how well that the breaks work';
$characterLimit = substr($textToDraw, 0, 100);
$textBeforeLimit = strrpos($characterLimit, ' ', 0);
Thanks
UPDATE. This is the current code I have to split the text into an array and then draw each line. However I need it to cut on the space before 100 characters - and not on a hardcoded 100 character limit.
for ($i = 0; $i < count($textToDraw); $i++) {
$splitPoint = 100;
if ( strlen($textToDraw[$i]) > $splitPoint ) {
$newTextLines = str_split($textToDraw[$i], $splitPoint);
array_splice($textToDraw, $i, 1, $newTextLines);
$i = $i + count($newTextLines) - 1;
}
}
foreach ($textToDraw as $actualTextToDraw) {
$page->drawText($actualTextToDraw, $this->x , $this->y , 'UTF-8');
}

Answer 1

You can use php function wordwrap as below. This Wraps a string to a given number of characters using a string break character.
<?php
$textToDraw = 'this is a message that is over 100 characters long just to see how well that the breaks work';
$newtext = wordwrap($textToDraw, 100, "<br />\n");
echo $newtext;
?>

Answer 2

Try wordwrap().
Wraps a string to a given number of characters using a string break character.
Example adapted from the documentation page:
<?php
$text = "The quick brown fox jumped over the lazy dog.";
$newtext = wordwrap($text, 20, "<br />\n");
echo $newtext;
// Outputs:
// The quick brown fox<br />
// jumped over the lazy<br />
// dog.
Update for new info in question:
Apply it to your needs:
$text = "Here's some example text that may or may not be really really long.";
$linedText = wordwrap($text, 20, "\n");
$lines = explode("\n", $linedText);
// Do whatever with $lines.