3v4l.org

run code in 300+ PHP versions simultaneously
<?php<a href="http://www.google.com/calendar/event?action=TEMPLATE&text=[event-title]&dates=[start-custom format='Ymd\\THi00\\Z']/[end-custom format='Ymd\\THi00\\Z']&details=[description]&location=[location]&trp=false&sprop=&sprop=name:" target="_blank" rel="nofollow">Add to my calendar</a>
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.32, 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.3 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<?php<a href="http://www.google.com/calendar/event?action=TEMPLATE&text=[event-title]&dates=[start-custom format='Ymd\\THi00\\Z']/[end-custom format='Ymd\\THi00\\Z']&details=[description]&location=[location]&trp=false&sprop=&sprop=name:" target="_blank" rel="nofollow">Add to my calendar</a>
Output for 8.0.13
Parse error: syntax error, unexpected identifier "href" in /in/SeqUi on line 1
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.33
Parse error: syntax error, unexpected 'href' (T_STRING) in /in/SeqUi on line 1
Process exited with code 255.

preferences:
182.11 ms | 401 KiB | 202 Q