3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'a1'; $b = +$a; var_dump($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)
8.3.60.0140.00718.55
8.3.50.0110.00416.45
8.3.40.0110.00718.89
8.3.30.0110.00418.58
8.3.20.0060.00320.13
8.3.10.0080.00020.94
8.3.00.0030.00619.17
8.2.180.0070.01016.63
8.2.170.0070.00722.96
8.2.160.0080.00620.22
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00021.04
8.2.120.0000.00826.35
8.2.110.0000.00922.25
8.2.100.0110.00017.72
8.2.90.0060.00317.84
8.2.80.0040.00419.38
8.2.70.0000.00817.63
8.2.60.0000.00818.05
8.2.50.0000.00718.10
8.2.40.0000.00820.42
8.2.30.0000.00719.11
8.2.20.0040.00418.00
8.2.10.0000.00718.02
8.2.00.0030.00317.99
8.1.280.0140.00725.92
8.1.270.0040.00423.84
8.1.260.0120.00626.35
8.1.250.0000.00728.09
8.1.240.0100.01022.05
8.1.230.0070.00422.64
8.1.220.0060.00317.74
8.1.210.0000.00818.87
8.1.200.0060.00317.35
8.1.190.0060.00317.35
8.1.180.0000.00918.10
8.1.170.0060.00318.34
8.1.160.0040.00418.82
8.1.150.0030.00320.13
8.1.140.0040.00419.41
8.1.130.0070.00018.73
8.1.120.0030.00317.41
8.1.110.0040.00417.36
8.1.100.0050.00217.46
8.1.90.0040.00417.29
8.1.80.0000.00717.40
8.1.70.0030.00317.25
8.1.60.0050.00317.52
8.1.50.0060.00617.52
8.1.40.0050.00317.48
8.1.30.0000.00817.63
8.1.20.0040.00417.60
8.1.10.0040.00417.45
8.1.00.0000.00817.36
8.0.300.0040.00420.01
8.0.290.0040.00416.75
8.0.280.0030.00318.45
8.0.270.0050.00217.18
8.0.260.0000.00618.78
8.0.250.0000.00716.84
8.0.240.0040.00416.90
8.0.230.0030.00316.95
8.0.220.0000.00716.77
8.0.210.0000.00716.92
8.0.200.0000.00916.88
8.0.190.0060.00316.95
8.0.180.0070.00016.79
8.0.170.0000.00716.93
8.0.160.0000.00916.99
8.0.150.0040.00416.88
8.0.140.0070.00016.82
8.0.130.0000.00713.32
8.0.120.0000.00816.74
8.0.110.0040.00416.85
8.0.100.0030.00516.86
8.0.90.0050.00316.69
8.0.80.0140.00616.85
8.0.70.0000.00716.74
8.0.60.0040.00416.86
8.0.50.0030.00516.77
8.0.30.0070.00817.14
8.0.20.0130.00517.40
8.0.10.0030.00516.79
8.0.00.0110.00716.98
7.4.330.0030.00315.55
7.4.320.0070.00016.55
7.4.300.0000.00616.47
7.4.290.0070.00016.50
7.4.280.0000.00716.55
7.4.270.0030.00316.42
7.4.260.0000.00716.50
7.4.250.0030.00316.39
7.4.240.0030.00316.56
7.4.230.0040.00416.51
7.4.220.0110.00916.36
7.4.210.0060.01016.43
7.4.200.0040.00416.32
7.4.160.0100.00816.43
7.4.150.0160.00617.40
7.4.140.0090.00917.86
7.4.130.0140.00416.44
7.4.120.0120.00816.57
7.4.110.0170.00016.40
7.4.100.0070.01416.50
7.4.90.0060.01216.29
7.4.80.0070.01019.39
7.4.70.0030.01416.66
7.4.60.0130.00616.38
7.4.50.0070.01016.43
7.4.40.0120.00316.28
7.4.30.0100.01016.59
7.4.00.0080.00515.08
7.3.330.0050.00013.19
7.3.320.0050.00013.16
7.3.310.0000.00716.10
7.3.300.0000.00716.24
7.3.290.0030.00316.16
7.3.280.0080.00916.24
7.3.270.0130.00317.40
7.3.260.0130.00416.37
7.3.250.0110.01016.47
7.3.240.0060.01016.46
7.3.230.0130.00316.27
7.3.210.0080.01116.25
7.3.200.0100.00716.36
7.3.190.0050.01016.21
7.3.180.0090.00616.25
7.3.170.0090.00616.24
7.3.160.0080.00816.30
7.3.120.0000.01514.85
7.3.110.0090.00914.93
7.3.100.0060.01214.55
7.3.90.0070.00714.73
7.3.80.0070.00714.70
7.3.70.0120.00614.64
7.3.60.0040.01114.86
7.3.50.0100.00714.71
7.3.40.0030.00914.51
7.3.30.0030.01014.59
7.3.20.0030.01116.52
7.3.10.0070.01016.63
7.3.00.0000.01316.39
7.2.330.0100.00716.41
7.2.320.0030.01616.58
7.2.310.0030.01316.55
7.2.300.0090.00916.72
7.2.290.0030.01316.37
7.2.250.0030.01414.86
7.2.240.0040.01514.64
7.2.230.0030.01014.46
7.2.220.0070.01014.96
7.2.210.0100.00614.65
7.2.200.0060.00614.66
7.2.190.0070.00414.93
7.2.180.0100.00314.79
7.2.170.0040.01514.97
7.2.160.0000.01314.70
7.2.150.0080.00816.73
7.2.140.0070.01016.82
7.2.130.0030.01216.78
7.2.120.0030.01016.84
7.2.110.0040.00816.96
7.2.100.0100.00016.68
7.2.90.0030.01016.70
7.2.80.0060.00616.75
7.2.70.0090.00616.84
7.2.60.0070.00816.90
7.2.50.0120.00616.46
7.2.40.0070.00316.89
7.2.30.0030.00616.85
7.2.20.0030.01016.83
7.2.10.0060.00916.79
7.2.00.0060.01216.73
7.1.330.0190.00016.00
7.1.320.0030.01015.82
7.1.310.0080.01116.01
7.1.300.0070.01015.45
7.1.290.0030.01015.52
7.1.280.0040.00815.57
7.1.270.0040.01115.60
7.1.260.0030.01015.57
7.1.250.0090.00615.69
7.1.240.0000.00915.89
7.1.230.0070.00715.53
7.1.220.0050.00515.73
7.1.210.0070.00715.80
7.1.200.0050.00715.74
7.1.190.0000.01515.82
7.1.180.0140.00015.66
7.1.170.0070.01015.49
7.1.160.0070.00715.65
7.1.150.0080.00815.71
7.1.140.0030.01015.59
7.1.130.0080.00015.80
7.1.120.0040.00815.91
7.1.110.0080.00315.59
7.1.100.0030.00615.86
7.1.90.0100.00316.74
7.1.80.0110.00516.82
7.1.70.0070.00716.24
7.1.60.0050.01525.43
7.1.50.0110.00825.25
7.1.40.0140.00825.06
7.1.30.0120.00824.95
7.1.20.0110.01125.06
7.1.10.0040.00716.17
7.1.00.0060.00816.17
7.0.330.0070.00715.32
7.0.320.0030.01015.20
7.0.310.0040.01215.52
7.0.300.0150.00015.56
7.0.290.0120.00015.12
7.0.280.0030.01015.52
7.0.270.0030.00715.21
7.0.260.0030.01015.20
7.0.250.0040.01115.37
7.0.240.0030.00915.41
7.0.230.0060.00716.70
7.0.220.0020.01416.66
7.0.210.0110.00215.99
7.0.200.0030.01015.90
7.0.190.0060.00515.96
7.0.180.0080.00615.70
7.0.170.0050.00915.82
7.0.160.0030.01115.95
7.0.150.0070.00615.82
7.0.140.0090.00515.92
7.0.130.0020.00915.92
7.0.120.0030.01015.99
7.0.110.0040.00815.82
7.0.100.0080.00515.87
7.0.90.0040.01115.83
7.0.80.0060.00715.94
7.0.70.0050.00915.70
7.0.60.0060.00915.68
7.0.50.0030.00815.84
7.0.40.0060.00415.07
7.0.30.0040.00814.96
7.0.20.0050.00514.87
7.0.10.0020.01114.89
7.0.00.0030.00714.94
5.6.400.0070.00713.91
5.6.390.0060.01014.30
5.6.380.0030.01014.42
5.6.370.0040.00414.52
5.6.360.0090.00614.48
5.6.350.0030.01014.41
5.6.340.0000.01414.11
5.6.330.0140.00014.31
5.6.320.0040.00814.57
5.6.310.0110.00614.32
5.6.300.0090.00414.30
5.6.290.0030.00914.37
5.6.280.0090.00614.46
5.6.270.0000.00914.30
5.6.260.0030.01014.34
5.6.250.0070.00414.12
5.6.240.0030.00914.05
5.6.230.0060.00614.24
5.6.220.0030.01014.09
5.6.210.0070.00714.38
5.6.200.0080.00014.23
5.6.190.0030.00614.32
5.6.180.0000.01314.30
5.6.170.0030.01014.11
5.6.160.0000.00814.19
5.6.150.0030.01014.16
5.6.140.0030.01014.20
5.6.130.0100.00714.13
5.6.120.0000.01514.10
5.6.110.0040.01114.15
5.6.100.0100.00714.23
5.6.90.0030.01114.39
5.6.80.0060.00614.23
5.6.70.0000.00914.12
5.6.60.0060.00314.13
5.6.50.0040.00714.02
5.6.40.0090.00614.34
5.6.30.0040.01114.06
5.6.20.0070.00714.39
5.6.10.0000.01014.08
5.6.00.0000.01514.10

preferences:
66.31 ms | 400 KiB | 5 Q