Online PHP editor | perf for BhB41

@ 2013-06-01T12:54:09Z

<?php
function truncate($input, $maxWords, $maxChars){
    $words = preg_split('/\s+/', $input);
    $words = array_slice($words, 0, $maxWords);
    $words = array_reverse($words);

    $chars = 0;
    $truncated = array();

    while(count($words) > 0)
    {
        $fragment = trim(array_pop($words));
        $chars += strlen($fragment);

        if($chars > $maxChars){
            if(!$truncated){
                $truncated[]=substr($fragment, 0, $maxChars - $chars);
            }
            break;
        }

        $truncated[] = $fragment;
    }

    $result = implode($truncated, ' ');

    $wordCount = count($truncated);

// Handle Case where character count is violated
if ($maxLength && $chars > $maxLength){
    $result = substr($result, 0, ceil($maxLength/2)."...".substr($results, -1 * floor($maxLength/2);
} elseif($wordCount && $wordCount > $maxWords){
    // deal with too many words
    $result = implode(" ", array_slice($truncated, 0, ceil($wordCount/2))." ... ".
              implode(" ", array_slice($truncated, $wordCount - floor($wordCount/2) -1))
}
return $result;
}

$thing = truncate('the quick brown fox jumped over the lazy dog', 8, 16);
                      echo $thing;

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
5.4.15	0.008	0.042	12.41
5.4.14	0.008	0.046	12.10
5.4.13	0.006	0.042	12.08
5.4.12	0.005	0.044	12.04
5.4.11	0.008	0.048	12.04
5.4.10	0.006	0.042	12.04
5.4.9	0.009	0.045	12.04
5.4.8	0.006	0.046	12.04
5.4.7	0.005	0.044	12.03
5.4.6	0.007	0.041	12.03
5.4.5	0.008	0.041	12.03
5.4.4	0.007	0.041	12.02
5.4.3	0.009	0.042	12.02
5.4.2	0.012	0.043	12.02
5.4.1	0.009	0.046	12.02
5.4.0	0.007	0.042	11.51
5.3.25	0.008	0.043	12.72
5.3.24	0.008	0.043	12.72
5.3.23	0.010	0.046	12.71
5.3.22	0.006	0.049	12.68
5.3.21	0.009	0.048	12.68
5.3.20	0.008	0.046	12.68
5.3.19	0.008	0.043	12.67
5.3.18	0.009	0.041	12.67
5.3.17	0.009	0.042	12.67
5.3.16	0.007	0.044	12.67
5.3.15	0.011	0.042	12.67
5.3.14	0.009	0.042	12.66
5.3.13	0.009	0.045	12.66
5.3.12	0.008	0.048	12.66
5.3.11	0.007	0.047	12.66
5.3.10	0.008	0.043	12.14
5.3.9	0.007	0.046	12.12
5.3.8	0.007	0.045	12.10
5.3.7	0.009	0.043	12.10
5.3.6	0.009	0.044	12.09
5.3.5	0.011	0.039	12.04
5.3.4	0.011	0.040	12.04
5.3.3	0.010	0.045	11.99
5.3.2	0.007	0.044	11.78
5.3.1	0.008	0.041	11.75
5.3.0	0.008	0.041	11.73

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