3v4l.org

run code in 300+ PHP versions simultaneously
<?php $sentence = "One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen."; for ($i = 1; $i <= 15; $i++) { if (preg_match('/^((\s*\S+){45}(\s*\S+)*?\.).*?\.\s*\S/', $sentence, $match)) { echo "Summary {$i}: {$match[1]}\n"; } else { echo "Full text {$i}: {$sentence}\n"; } }
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Full text 1: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 2: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 3: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 4: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 5: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 6: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 7: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 8: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 9: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 10: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 11: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 12: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 13: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 14: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen. Full text 15: One two three. Four five six. Seven eight nine. Ten eleven twelve. Thirteen fourteen fifteen.
preferences:
170.85 ms | 408 KiB | 257 Q