Find the differences between two texts. Simplifies the problem by
stripping any common prefix or suffix off the texts before diffing.
| public main ( string $text1, string $text2, boolean $checklines = true, integer $deadline = null ) : self | ||
| $text1 | string | Old string to be diffed. |
| $text2 | string | New string to be diffed. |
| $checklines | boolean | Optional speedup flag. If present and false, then don't run a line-level diff first to identify the changed areas. Defaults to true, which does a faster, slightly less optimal diff. |
| $deadline | integer | Optional time when the diff should be complete by. Used internally for recursive calls. Users should set $this->timeout instead. |
| Результат | self | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
require __DIR__ . "/../../src/DiffMatchPatch/Diff.php";
require __DIR__ . "/../../src/DiffMatchPatch/DiffToolkit.php";
require __DIR__ . "/../../src/DiffMatchPatch/Utils.php";
use DiffMatchPatch\Diff;
$size = 'M';
$text1 = file_get_contents(__DIR__ . "/fixtures/{$size}_performance1.txt");
$text2 = file_get_contents(__DIR__ . "/fixtures/{$size}_performance2.txt");
//$text1 = "The quick brown fox jumps over the lazy dog.";
//$text2 = "That quick brown fox jumped over a lazy dog.";
$timeStart = microtime(1);
$diff = new Diff();
$diff->setTimeout(0);
$diff->main($text1, $text2, false)->cleanupSemantic();
$timeElapsed = microtime(1) - $timeStart;
echo 'Elapsed time: ' . round($timeElapsed, 3) . PHP_EOL;
echo 'Memory: ' . round(memory_get_peak_usage() / 1024 / 1024, 3) . PHP_EOL;
echo 'Texts length: ' . mb_strlen($text1) . ', ' . mb_strlen($text2) . PHP_EOL;
echo 'Diffs count: ' . count($diff->getChanges()) . PHP_EOL . PHP_EOL;
$timeStart = microtime(1);
$diff = new Diff();
$diff->setTimeout(0);
$diff->main($text1, $text2)->cleanupEfficiency();
$timeElapsed = microtime(1) - $timeStart;
echo 'Elapsed time: ' . round($timeElapsed, 3) . PHP_EOL;
echo 'Memory: ' . round(memory_get_peak_usage() / 1024 / 1024, 3) . PHP_EOL;
echo 'Texts length: ' . mb_strlen($text1) . ', ' . mb_strlen($text2) . PHP_EOL;
echo 'Diffs count: ' . count($diff->getChanges()) . PHP_EOL . PHP_EOL;
