3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = Null; $alpha = $string ?? 'No Input'; $left = -15; $right = -30; echo $left <=> $right; echo '\r\0'; echo $alpha;

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)
8.3.60.0150.00616.50
8.3.50.0160.00322.00
8.3.40.0170.00318.77
8.3.30.0070.00718.42
8.3.20.0080.00020.21
8.3.10.0000.00723.48
8.3.00.0080.00019.79
8.2.180.0150.00016.32
8.2.170.0030.01022.96
8.2.160.0100.00720.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0090.00020.84
8.2.120.0050.00326.35
8.2.110.0030.00622.14
8.2.100.0000.01217.93
8.2.90.0060.00319.28
8.2.80.0000.00817.97
8.2.70.0030.00617.34
8.2.60.0070.00218.04
8.2.50.0090.00018.07
8.2.40.0030.00522.34
8.2.30.0050.00220.51
8.2.20.0040.00417.70
8.2.10.0040.00418.09
8.2.00.0040.00418.04
8.1.280.0120.00425.92
8.1.270.0000.00723.99
8.1.260.0070.00028.09
8.1.250.0070.00028.09
8.1.240.0030.00622.12
8.1.230.0030.00719.04
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00317.22
8.1.190.0040.00416.99
8.1.180.0050.00318.10
8.1.170.0030.00618.24
8.1.160.0070.00020.71
8.1.150.0000.00818.88
8.1.140.0000.00819.48
8.1.130.0030.00317.57
8.1.120.0040.00417.36
8.1.110.0040.00417.44
8.1.100.0040.00417.38
8.1.90.0000.00717.46
8.1.80.0000.00717.46
8.1.70.0030.00317.35
8.1.60.0000.00717.46
8.1.50.0050.00317.50
8.1.40.0080.00017.54
8.1.30.0030.00617.49
8.1.20.0020.00517.52
8.1.10.0080.00017.37
8.1.00.0000.00717.43
8.0.300.0050.00218.77
8.0.290.0070.00016.75
8.0.280.0030.00518.45
8.0.270.0070.00017.21
8.0.260.0000.00717.24
8.0.250.0000.00716.84
8.0.240.0040.00416.95
8.0.230.0000.00716.84
8.0.220.0000.00716.79
8.0.210.0000.00716.89
8.0.200.0030.00716.95
8.0.190.0050.00216.94
8.0.180.0040.00416.98
8.0.170.0000.00816.94
8.0.160.0000.00916.85
8.0.150.0030.00516.85
8.0.140.0070.00016.77
8.0.130.0000.00613.26
8.0.120.0030.00516.78
8.0.110.0040.00416.93
8.0.100.0040.00416.83
8.0.90.0040.00416.84
8.0.80.0090.00616.88
8.0.70.0000.00916.75
8.0.60.0000.00816.75
8.0.50.0000.00716.78
8.0.30.0070.01217.12
8.0.20.0090.00917.40
8.0.10.0040.00416.91
8.0.00.0080.01016.86
7.4.330.0000.00516.77
7.4.320.0060.00016.63
7.4.300.0030.00316.59
7.4.290.0030.00316.56
7.4.280.0040.00716.58
7.4.270.0070.00016.58
7.4.260.0040.00416.55
7.4.250.0000.00716.42
7.4.240.0050.00216.52
7.4.230.0070.00016.53
7.4.220.0120.00616.59
7.4.210.0080.00916.52
7.4.200.0000.00716.57
7.4.160.0060.01016.50
7.4.150.0180.00017.40
7.4.140.0120.01217.86
7.4.130.0090.01016.43
7.4.120.0080.00816.53
7.4.110.0030.01416.53
7.4.100.0090.00816.34
7.4.90.0090.00816.37
7.4.80.0170.00019.39
7.4.70.0060.01116.51
7.4.60.0090.00916.50
7.4.50.0000.01216.52
7.4.40.0030.01316.49
7.4.30.0160.00016.64
7.4.00.0170.00014.94
7.3.330.0050.00013.18
7.3.320.0080.00013.03
7.3.310.0000.00816.22
7.3.300.0080.00016.22
7.3.290.0040.00416.19
7.3.280.0070.00816.20
7.3.270.0170.00017.40
7.3.260.0040.01116.68
7.3.250.0120.00516.36
7.3.240.0130.00416.57
7.3.230.0130.01016.39
7.3.210.0110.00716.23
7.3.200.0140.00316.36
7.3.190.0090.00916.63
7.3.180.0130.00616.20
7.3.170.0130.00616.30
7.3.160.0080.00816.43
7.3.10.0000.01616.48
7.3.00.0030.00816.68
7.2.330.0060.00916.39
7.2.320.0000.01716.64
7.2.310.0060.01716.71
7.2.300.0110.00616.46
7.2.290.0070.01316.51
7.2.130.0100.00716.67
7.2.120.0030.00616.89
7.2.110.0030.01016.80
7.2.100.0040.01116.56
7.2.90.0090.00616.95
7.2.80.0000.01016.53
7.2.70.0060.00317.04
7.2.60.0070.00716.89
7.2.50.0080.00416.92
7.2.40.0030.01316.62
7.2.30.0120.00416.88
7.2.20.0070.00316.83
7.2.10.0130.00316.87
7.2.00.0040.01118.17
7.1.250.0080.00015.68
7.1.200.0070.00715.30
7.1.100.0000.01217.84
7.1.70.0050.00516.91
7.1.60.0120.00919.52
7.1.50.0000.02016.86
7.1.00.0030.07322.27
7.0.200.0000.00716.51
7.0.60.0030.04020.06
7.0.50.0130.07717.89
7.0.40.0100.03719.90
7.0.30.0300.07720.16
7.0.20.0130.04720.17
7.0.10.0070.04720.33
7.0.00.0070.08320.30
5.6.280.0030.06021.04
5.6.210.0000.06720.72
5.6.200.0030.08318.24
5.6.190.0070.05320.46
5.6.180.0130.04720.57
5.6.170.0270.04320.55
5.6.160.0070.04320.57
5.6.150.0100.03318.19
5.6.140.0070.07018.11
5.6.130.0000.04318.15
5.6.120.0130.07721.02
5.6.110.0030.04320.95
5.6.100.0070.08020.97
5.6.90.0130.08020.98
5.6.80.0130.06320.38
5.5.350.0000.07720.39
5.5.340.0000.08717.94
5.5.330.0070.08020.42
5.5.320.0230.06720.34
5.5.310.0270.07720.41
5.5.300.0070.05717.94
5.5.290.0130.03718.03
5.5.280.0000.08720.76
5.5.270.0100.05720.72
5.5.260.0100.04020.79
5.5.250.0030.04020.49
5.5.240.0170.06720.25

preferences:
56.9 ms | 401 KiB | 5 Q