3v4l.org

run code in 150+ php & hhvm versions
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<?php $start=microtime(1); $a=(int)8e64; var_dump($a.''); print 'Time: '.(microtime(1)-$start);
Output for 5.6.10, 5.6.14, 5.6.16, 7.0.3, 7.1.0
string(1) "0" Time: 3.0994415283203E-5
Output for 7.0.6 - 7.0.14
string(1) "0" Time: 3.504753112793E-5
Output for 5.3.15, 5.3.19, 5.3.23 - 5.3.25, 5.4.2, 5.4.5, 5.4.14, 5.4.18, 5.4.27, 7.0.5
string(1) "0" Time: 2.0980834960938E-5
Output for 5.5.29, 7.0.4
string(1) "0" Time: 3.4093856811523E-5
Output for 5.4.26, 5.4.36, 5.5.33, 5.6.13, 7.0.2
string(1) "0" Time: 2.598762512207E-5
Output for 7.0.1
string(1) "0" Time: 3.0040740966797E-5
Output for 5.4.15, 7.0.0
string(1) "0" Time: 2.3126602172852E-5
Output for 5.6.28
string(1) "0" Time: 3.8862228393555E-5
Output for 5.6.21
string(1) "0" Time: 3.3855438232422E-5
Output for 5.6.20
string(1) "0" Time: 2.3841857910156E-5
Output for 5.6.19
string(1) "0" Time: 3.3140182495117E-5
Output for 5.5.28, 5.6.18
string(1) "0" Time: 2.7179718017578E-5
Output for 5.6.17
string(1) "0" Time: 5.0067901611328E-5
Output for 5.6.15
string(1) "0" Time: 3.6001205444336E-5
Output for 5.6.11 - 5.6.12
string(1) "0" Time: 2.9087066650391E-5
Output for 5.3.12, 5.6.9
string(1) "0" Time: 2.5033950805664E-5
Output for 5.6.8
string(1) "0" Time: 5.3167343139648E-5
Output for 5.3.21, 5.3.27, 5.4.0, 5.4.9 - 5.4.10, 5.4.24, 5.4.30 - 5.4.31, 5.4.37, 5.4.39, 5.5.35
string(1) "0" Time: 2.0027160644531E-5
Output for 5.5.34
string(1) "0" Time: 3.7908554077148E-5
Output for 5.5.27, 5.5.32
string(1) "0" Time: 3.1948089599609E-5
Output for 5.5.31
string(1) "0" Time: 3.6954879760742E-5
Output for 5.5.30
string(1) "0" Time: 4.7922134399414E-5
Output for 5.5.24, 5.5.26
string(1) "0" Time: 2.8848648071289E-5
Output for 5.5.25
string(1) "0" Time: 4.8160552978516E-5
Output for 5.4.19 - 5.4.20, 5.4.42, 5.4.45
string(1) "0" Time: 1.5020370483398E-5
Output for 5.4.4, 5.4.11, 5.4.23, 5.4.41, 5.4.44
string(1) "0" Time: 2.1934509277344E-5
Output for 5.2.13, 5.3.1, 5.3.18, 5.4.8, 5.4.28, 5.4.43
string(1) "0" Time: 1.8119812011719E-5
Output for 5.2.7, 5.2.15 - 5.2.16, 5.3.13, 5.3.22, 5.4.17, 5.4.21, 5.4.29, 5.4.32, 5.4.38, 5.4.40
string(1) "0" Time: 1.5974044799805E-5
Output for 5.4.35
string(1) "0" Time: 1.7166137695312E-5
Output for 5.2.6, 5.3.6, 5.3.14, 5.3.28, 5.4.34
string(1) "0" Time: 1.6927719116211E-5
Output for 5.4.13, 5.4.25
string(1) "0" Time: 2.4080276489258E-5
Output for 5.2.3, 5.3.0, 5.3.16, 5.3.26, 5.4.22
string(1) "0" Time: 1.7881393432617E-5
Output for 5.4.16
string(1) "0" Time: 1.6212463378906E-5
Output for 5.4.12
string(1) "0" Time: 1.8835067749023E-5
Output for 5.3.17, 5.4.1, 5.4.7
string(1) "0" Time: 1.9073486328125E-5
Output for 5.2.11, 5.3.9, 5.4.6
string(1) "0" Time: 1.4066696166992E-5
Output for 5.3.20, 5.4.3
string(1) "0" Time: 2.288818359375E-5
Output for 5.3.29
string(1) "0" Time: 1.978874206543E-5
Output for 5.2.8, 5.2.10, 5.2.12, 5.3.7, 5.3.11
string(1) "0" Time: 1.3113021850586E-5
Output for 5.2.4 - 5.2.5, 5.2.9, 5.3.4 - 5.3.5, 5.3.10
string(1) "0" Time: 1.2874603271484E-5
Output for 5.2.2, 5.3.2 - 5.3.3, 5.3.8
string(1) "0" Time: 1.3828277587891E-5
Output for 5.2.14, 5.2.17
string(1) "0" Time: 1.1920928955078E-5
Output for 5.2.1
string(1) "0" Time: 1.7166137695312E-05
Output for 5.1.0, 5.2.0
string(1) "0" Time: 1.2874603271484E-05
Output for 5.1.2, 5.1.6
string(1) "0" Time: 1.5974044799805E-05
Output for 5.0.1, 5.1.5
string(1) "0" Time: 2.0027160644531E-05
Output for 5.0.3 - 5.0.4, 5.1.4
string(1) "0" Time: 1.5020370483398E-05
Output for 5.1.3
string(1) "0" Time: 1.6927719116211E-05
Output for 5.0.0, 5.1.1
string(1) "0" Time: 1.3828277587891E-05
Output for 5.0.5
string(1) "0" Time: 1.3113021850586E-05
Output for 5.0.2
string(19) "9223372036854775807" Time: 1.4066696166992E-05
Output for 4.3.9, 4.4.9
string(1) "0" Time: 1.7000000000045E-05
Output for 4.4.7 - 4.4.8
string(1) "0" Time: 1.6000000000002E-05
Output for 4.3.6, 4.4.6
string(1) "0" Time: 1.5999999999988E-05
Output for 4.3.0, 4.4.5
string(1) "0" Time: 1.8999999999991E-05
Output for 4.4.4
string(1) "0" Time: 1.7999999999962E-05
Output for 4.4.3
string(1) "0" Time: 2.4000000000024E-05
Output for 4.4.2
string(1) "0" Time: 1.9999999999909E-05
Output for 4.4.1
string(1) "0" Time: 2.0999999999938E-05
Output for 4.3.10 - 4.4.0
string(1) "0" Time: 1.4999999999987E-05
Output for 4.3.2, 4.3.4, 4.3.8
string(1) "0" Time: 1.6000000000016E-05
Output for 4.3.7
string(1) "0" Time: 1.8000000000001E-05
Output for 4.3.5
string(1) "0" Time: 2.1999999999994E-05
Output for 4.3.3
string(1) "0" Time: 2.2999999999995E-05
Output for 4.3.1
string(1) "0" Time: 1.4000000000014E-05