3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = false; $b = intval($a); echo isset($b); echo empty($b);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0140.00316.63
8.3.50.0150.00418.38
8.3.40.0110.00418.70
8.3.30.0040.01418.54
8.3.20.0040.00419.11
8.3.10.0070.00021.72
8.3.00.0040.00422.39
8.2.180.0110.00418.29
8.2.170.0120.00322.96
8.2.160.0070.00719.32
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0070.00022.13
8.2.120.0080.00026.35
8.2.110.0090.00019.24
8.2.100.0060.00617.91
8.2.90.0030.00519.25
8.2.80.0000.00817.97
8.2.70.0080.00017.63
8.2.60.0080.00017.80
8.2.50.0000.00818.10
8.2.40.0060.00322.45
8.2.30.0060.00319.11
8.2.20.0040.00417.57
8.2.10.0030.00417.96
8.2.00.0020.00517.57
8.1.280.0170.00325.92
8.1.270.0080.00023.91
8.1.260.0000.00828.09
8.1.250.0070.00028.09
8.1.240.0070.00320.97
8.1.230.0120.00017.42
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0060.00317.23
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0000.00818.71
8.1.160.0040.00422.11
8.1.150.0040.00418.87
8.1.140.0000.00719.41
8.1.130.0030.00317.62
8.1.120.0050.00317.28
8.1.110.0030.00517.36
8.1.100.0000.00717.41
8.1.90.0030.00317.41
8.1.80.0000.00717.41
8.1.70.0040.00417.34
8.1.60.0000.00817.57
8.1.50.0040.00417.44
8.1.40.0000.00717.41
8.1.30.0000.00917.55
8.1.20.0080.00317.68
8.1.10.0070.00017.44
8.1.00.0050.00217.41
8.0.300.0000.00718.77
8.0.290.0000.00716.58
8.0.280.0030.00318.41
8.0.270.0030.00317.11
8.0.260.0060.00016.80
8.0.250.0060.00017.00
8.0.240.0030.00516.98
8.0.230.0060.00316.88
8.0.220.0070.00016.70
8.0.210.0080.00016.81
8.0.200.0030.00316.89
8.0.190.0050.00216.77
8.0.180.0020.00516.85
8.0.170.0040.00416.73
8.0.160.0000.00716.71
8.0.150.0040.00416.71
8.0.140.0040.00416.67
8.0.130.0000.00613.18
8.0.120.0000.00816.80
8.0.110.0030.00516.84
8.0.100.0000.00716.75
8.0.90.0000.00716.87
8.0.80.0090.01316.77
8.0.70.0000.00716.84
8.0.60.0070.00016.86
8.0.50.0020.00516.84
8.0.30.0100.00716.86
8.0.20.0150.00517.40
8.0.10.0030.00616.82
8.0.00.0080.00816.42
7.4.330.0050.00015.09
7.4.320.0000.00616.50
7.4.300.0060.00016.63
7.4.290.0040.00416.48
7.4.280.0000.00816.55
7.4.270.0030.00316.39
7.4.260.0000.00616.50
7.4.250.0000.00716.45
7.4.240.0070.00016.39
7.4.230.0000.00716.48
7.4.220.0100.00916.51
7.4.210.0110.00716.65
7.4.200.0040.00416.68
7.4.160.0110.01116.38
7.4.150.0070.01017.40
7.4.140.0130.00717.86
7.4.130.0100.00716.43
7.4.120.0090.00716.36
7.4.110.0030.01316.61
7.4.100.0070.01016.46
7.4.90.0130.01016.39
7.4.80.0070.01019.39
7.4.70.0060.00916.60
7.4.60.0090.00616.45
7.4.50.0030.00716.47
7.4.40.0060.01116.39
7.4.30.0090.00916.46
7.4.00.0050.01214.88
7.3.330.0000.00513.02
7.3.320.0030.00313.01
7.3.310.0080.00016.09
7.3.300.0040.00416.23
7.3.290.0070.00016.06
7.3.280.0070.01016.20
7.3.270.0060.01117.40
7.3.260.0110.00616.26
7.3.250.0060.01016.25
7.3.240.0100.01316.22
7.3.230.0070.01016.39
7.3.210.0080.00816.12
7.3.200.0100.00716.38
7.3.190.0090.00616.23
7.3.180.0030.01616.30
7.3.170.0080.00916.38
7.3.160.0080.00816.14
7.3.120.0100.00314.66
7.3.110.0030.01514.61
7.3.100.0070.01014.82
7.3.90.0070.01014.64
7.3.80.0000.01714.80
7.3.70.0030.00614.51
7.3.60.0100.00314.54
7.3.50.0070.01014.66
7.3.40.0090.00014.84
7.3.30.0060.00914.69
7.3.20.0060.00916.40
7.3.10.0110.00316.46
7.3.00.0030.00716.49
7.2.330.0120.00616.50
7.2.320.0110.00716.63
7.2.310.0110.01116.61
7.2.300.0030.01416.38
7.2.290.0080.00816.40
7.2.250.0150.00315.05
7.2.240.0110.00714.53
7.2.230.0080.00414.83
7.2.220.0130.00314.90
7.2.210.0100.00314.82
7.2.200.0070.00714.88
7.2.190.0030.00714.91
7.2.180.0120.00314.82
7.2.170.0060.00615.00
7.2.80.0160.00916.60
7.2.60.0060.00916.69
7.2.00.0080.00419.48
7.1.330.0080.00615.79
7.1.320.0000.00915.73
7.1.310.0000.01615.54
7.1.300.0030.00715.55
7.1.290.0030.00715.33
7.1.280.0060.01015.64
7.1.270.0070.00715.64
7.1.260.0060.00915.68
7.1.200.0040.00715.74
7.1.100.0000.01617.98
7.1.70.0160.00016.98
7.1.60.0030.00717.11
7.1.00.0030.07722.36
7.0.200.0110.00014.87
7.0.100.0100.09319.95
7.0.90.0070.06719.87
7.0.80.0170.05020.01
7.0.70.0170.05019.91
7.0.60.0070.07019.97
7.0.50.0100.06020.39
7.0.40.0230.04720.31
7.0.30.0070.06320.27
7.0.20.0130.08720.32
7.0.10.0170.04720.17
7.0.00.0100.06320.26
5.6.250.0100.07320.84
5.6.240.0170.05320.68
5.6.230.0230.04720.56
5.6.220.0230.05320.61
5.6.210.0170.05020.68
5.6.200.0300.04321.11
5.6.190.0270.05021.08
5.6.180.0100.08721.06
5.6.170.0100.06321.20
5.6.160.0100.05721.07
5.6.150.0100.05721.01
5.6.140.0070.05721.13
5.6.130.0100.05721.05
5.6.120.0270.07721.05
5.6.110.0100.06021.08
5.6.100.0200.04321.04
5.6.90.0070.06321.05
5.6.80.0100.05320.39
5.6.70.0170.04720.43
5.6.60.0100.05020.45
5.6.50.0100.05320.48
5.6.40.0070.05720.45
5.6.30.0030.05720.55
5.6.20.0030.06020.55
5.6.10.0100.05320.43
5.6.00.0030.05720.42

preferences:
52.86 ms | 401 KiB | 5 Q