3v4l.org

run code in 150+ php & hhvm versions
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<?php echo strtotime("May");
Output for 5.6.28, 7.0.14 - 7.1.0
1368482400
Output for 7.0.5 - 7.0.6
1462226400
Output for 5.6.20, 7.0.4
1462831200
Output for 7.0.3
1463522400
Output for 7.0.2
1463954400
Output for 5.5.24, 5.6.11, 7.0.1
1464040800
Output for 5.6.9, 7.0.0
1464300000
Output for hhvm-3.12.0
1463090400
Output for hhvm-3.10.0
1464645600
Output for 5.6.14, 5.6.21
1462140000
Output for 5.6.19
1462658400
Output for 5.6.13, 5.6.18
1463263200
Output for 5.6.17
1463608800
Output for 5.5.25, 5.6.16
1464386400
Output for 5.6.15
1464472800
Output for 5.6.12
1463695200
Output for 5.6.10
1464127200
Output for 5.6.8
1464559200
Output for 5.5.27, 5.5.35
1463868000
Output for 5.5.34
1462917600
Output for 5.5.33
1462744800
Output for 5.5.29, 5.5.32
1463436000
Output for 5.5.28, 5.5.31
1463781600
Output for 5.5.30
1462053600
Output for 5.5.26
1464213600
Output for 5.2.0 - 5.4.45
1430776800
Output for 5.1.0 - 5.1.6
Output for 4.3.0 - 5.0.5
-1