3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a(): string { return 1.1; } var_dump(a()); var_dump((string)null);

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)
8.3.60.0150.00418.41
8.3.50.0070.00716.08
8.3.40.0140.00418.96
8.3.30.0040.01118.79
8.3.20.0070.00020.29
8.3.10.0080.00021.77
8.3.00.0060.00320.84
8.2.180.0090.01218.40
8.2.170.0070.00722.96
8.2.160.0170.00022.13
8.2.150.0070.00025.66
8.2.140.0080.00024.66
8.2.130.0070.00020.52
8.2.120.0000.00826.35
8.2.110.0000.00920.41
8.2.100.0080.00417.91
8.2.90.0000.00818.97
8.2.80.0040.00417.97
8.2.70.0030.00617.38
8.2.60.0040.00417.80
8.2.50.0000.00918.10
8.2.40.0040.00422.32
8.2.30.0040.00420.96
8.2.20.0050.00217.84
8.2.10.0000.00717.80
8.2.00.0040.00417.90
8.1.280.0130.00725.92
8.1.270.0040.00423.85
8.1.260.0070.00026.35
8.1.250.0050.00228.09
8.1.240.0030.00622.62
8.1.230.0080.00319.15
8.1.220.0090.00017.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0030.00617.22
8.1.180.0060.00318.10
8.1.170.0060.00318.54
8.1.160.0040.00418.96
8.1.150.0000.00718.61
8.1.140.0040.00419.49
8.1.130.0050.00518.76
8.1.120.0000.00717.23
8.1.110.0040.00417.23
8.1.100.0040.00417.21
8.1.90.0080.00417.25
8.1.80.0040.00417.23
8.1.70.0030.00317.37
8.1.60.0040.00417.57
8.1.50.0040.00417.45
8.1.40.0060.00317.29
8.1.30.0040.00417.48
8.1.20.0060.00317.50
8.1.10.0050.00317.54
8.1.00.0040.00417.48
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00818.34
8.0.270.0030.00317.19
8.0.260.0030.00316.73
8.0.250.0070.00016.93
8.0.240.0000.00716.75
8.0.230.0000.00716.96
8.0.220.0030.00316.74
8.0.210.0040.00416.91
8.0.200.0070.00016.84
8.0.190.0040.00416.91
8.0.180.0050.00316.89
8.0.170.0000.00716.84
8.0.160.0040.00416.86
8.0.150.0000.00716.81
8.0.140.0000.00816.84
8.0.130.0030.00513.26
8.0.120.0030.00516.86
8.0.110.0000.00816.82
8.0.100.0030.00416.85
8.0.90.0080.00016.82
8.0.80.0100.00616.95
8.0.70.0000.00816.75
8.0.60.0000.00716.88
8.0.50.0000.00716.66
8.0.30.0100.00917.00
8.0.20.0120.00817.40
8.0.10.0070.00016.89
8.0.00.0070.01016.89
7.4.330.0030.00315.55
7.4.320.0030.00316.23
7.4.300.0000.00716.53
7.4.290.0030.00316.50
7.4.280.0070.00016.36
7.4.270.0050.00216.42
7.4.260.0000.01016.35
7.4.250.0070.00016.35
7.4.240.0030.00316.45
7.4.230.0030.00316.37
7.4.220.0060.01116.46
7.4.210.0070.00916.51
7.4.200.0030.00316.34
7.4.160.0110.00516.30
7.4.150.0140.00717.40
7.4.140.0140.00717.86
7.4.130.0130.00716.32
7.4.120.0130.01016.40
7.4.110.0060.01216.49
7.4.100.0110.01116.41
7.4.90.0060.01216.27
7.4.80.0090.01319.39
7.4.70.0090.00816.40
7.4.60.0030.01316.31
7.4.50.0070.00716.40
7.4.40.0030.01416.58
7.4.30.0090.00616.36
7.4.10.0090.00915.09
7.4.00.0050.01214.66
7.3.330.0000.00513.36
7.3.320.0030.00313.24
7.3.310.0030.00316.34
7.3.300.0040.00416.28
7.3.290.0090.01216.23
7.3.280.0050.01116.25
7.3.270.0030.01417.40
7.3.260.0120.00716.43
7.3.250.0080.00916.29
7.3.240.0110.00616.45
7.3.230.0100.00716.35
7.3.210.0160.00316.50
7.3.200.0070.01016.30
7.3.190.0100.01016.29
7.3.180.0070.01016.30
7.3.170.0100.01016.21
7.3.160.0110.00516.48
7.3.130.0070.00714.52
7.3.120.0070.00814.65
7.3.110.0080.00714.95
7.3.100.0090.00514.65
7.3.90.0050.00714.59
7.3.80.0050.01114.88
7.3.70.0040.00714.71
7.3.60.0070.01214.82
7.3.50.0050.01014.69
7.3.40.0050.00414.68
7.3.30.0070.00714.81
7.3.20.0040.00916.61
7.3.10.0060.00816.51
7.3.00.0030.01016.74
7.2.330.0100.00716.65
7.2.320.0070.01416.63
7.2.310.0060.01016.49
7.2.300.0030.01316.46
7.2.290.0160.00316.40
7.2.260.0090.00914.95
7.2.250.0040.01414.96
7.2.240.0080.00914.99
7.2.230.0070.01115.15
7.2.220.0060.01014.79
7.2.210.0060.00915.02
7.2.200.0070.00714.92
7.2.190.0080.00915.07
7.2.180.0010.01114.91
7.2.170.0040.00914.93
7.2.160.0110.00415.07
7.2.150.0030.01016.90
7.2.140.0100.00716.69
7.2.130.0070.00716.72
7.2.120.0030.00716.81
7.2.110.0030.00616.83
7.2.100.0070.00716.77
7.2.90.0090.00815.74
7.2.80.0460.00615.77
7.2.70.0230.00615.84
7.2.60.0110.00715.94
7.2.50.0080.01015.89
7.2.40.0080.00815.86
7.2.30.0270.00615.69
7.2.20.0130.00715.86
7.2.10.0080.00615.91
7.2.00.0130.00415.83
7.1.330.0100.00315.65
7.1.320.0070.00715.48
7.1.310.0060.00815.68
7.1.300.0060.00815.63
7.1.290.0070.00315.72
7.1.280.0080.00615.77
7.1.270.0090.00315.65
7.1.260.0050.00615.70
7.1.250.0030.00715.85
7.1.240.0030.01015.85
7.1.230.0070.00715.84
7.1.220.0040.00715.62
7.1.210.0070.00714.73
7.1.200.0390.00514.76
7.1.190.0320.00214.95
7.1.180.0060.00814.93
7.1.170.0070.00514.88
7.1.160.0250.00814.75
7.1.150.0070.00814.80
7.1.140.0040.00614.84
7.1.130.0080.00814.88
7.1.120.0200.00814.77
7.1.110.0220.00714.62
7.1.100.0150.00814.88
7.1.90.0140.00514.68
7.1.80.0170.00814.85
7.1.70.0080.00614.66
7.1.60.0290.00823.58
7.1.50.0180.00923.79
7.1.40.0400.00723.85
7.1.30.0490.00923.67
7.1.20.0400.01323.67
7.1.10.0140.01214.80
7.1.00.0340.00314.85
7.0.330.0090.00615.36
7.0.320.0040.01115.43
7.0.310.0150.00614.38
7.0.300.0030.00814.38
7.0.290.0240.00514.13
7.0.280.0100.00314.31
7.0.270.0150.00714.28
7.0.260.0170.00314.58
7.0.250.0130.00814.42
7.0.240.0130.01214.48
7.0.230.0060.00614.44
7.0.220.0100.00414.46
7.0.210.0070.00514.41
7.0.200.0130.00714.44
7.0.190.0420.00214.57
7.0.180.0410.00314.41
7.0.170.0290.00714.56
7.0.160.0340.00814.54
7.0.150.0120.00514.50
7.0.140.0210.00314.49
7.0.130.0190.00314.40
7.0.120.0100.00414.56
7.0.110.0080.00814.47
7.0.100.0130.00514.33
7.0.90.0170.00714.34
7.0.80.0060.00514.31
7.0.70.0110.00414.45
7.0.60.0130.00514.63
7.0.50.0240.00714.49
7.0.40.0270.00613.42
7.0.30.0140.00413.56
7.0.20.0270.00613.48
7.0.10.0050.00613.45
7.0.00.0180.00613.54
5.6.400.0030.00613.82
5.6.390.0040.00914.02
5.6.380.0050.00514.09
5.6.370.0000.01414.45
5.6.360.0070.00714.19
5.6.350.0040.00714.19
5.6.340.0070.01014.23
5.6.330.0030.00513.96
5.6.320.0030.01014.24
5.6.310.0040.00814.25
5.6.300.0030.00614.27
5.6.290.0060.00614.11
5.6.280.0070.00314.10
5.6.270.0030.00614.07
5.6.260.0070.01113.99
5.6.250.0090.00614.34
5.6.240.0070.01014.38
5.6.230.0080.00014.00
5.6.220.0000.01213.96
5.6.210.0040.00414.20
5.6.200.0070.00714.25
5.6.190.0080.00614.09
5.6.180.0140.00014.15
5.6.170.0030.01014.18
5.6.160.0090.00614.17
5.6.150.0000.00914.14
5.6.140.0070.01013.95
5.6.130.0070.00314.23
5.6.120.0000.01014.25
5.6.110.0060.00913.93
5.6.100.0070.00714.20
5.6.90.0060.00314.11
5.6.80.0060.00913.93
5.6.70.0030.01013.98
5.6.60.0000.01414.03
5.6.50.0060.00314.19
5.6.40.0090.00014.17
5.6.30.0040.01113.98
5.6.20.0060.01014.07
5.6.10.0000.01813.84
5.6.00.0030.01314.15

preferences:
50.28 ms | 400 KiB | 5 Q