3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($day=1;$day<=31;++$day){ print"\t<option value=\"$day\">$day<\option>\n"; } ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
<option value="1">1<\option> <option value="2">2<\option> <option value="3">3<\option> <option value="4">4<\option> <option value="5">5<\option> <option value="6">6<\option> <option value="7">7<\option> <option value="8">8<\option> <option value="9">9<\option> <option value="10">10<\option> <option value="11">11<\option> <option value="12">12<\option> <option value="13">13<\option> <option value="14">14<\option> <option value="15">15<\option> <option value="16">16<\option> <option value="17">17<\option> <option value="18">18<\option> <option value="19">19<\option> <option value="20">20<\option> <option value="21">21<\option> <option value="22">22<\option> <option value="23">23<\option> <option value="24">24<\option> <option value="25">25<\option> <option value="26">26<\option> <option value="27">27<\option> <option value="28">28<\option> <option value="29">29<\option> <option value="30">30<\option> <option value="31">31<\option>

preferences:
232.89 ms | 407 KiB | 353 Q