3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ser = unserialize('a:0:{}'); if(empty($ser)){ echo '1'; } //var_dump(unserialize($ser));

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)
8.3.60.0060.01518.31
8.3.50.0090.01221.92
8.3.40.0150.00018.58
8.3.30.0100.00320.26
8.3.20.0040.00418.56
8.3.10.0080.00020.97
8.3.00.0040.00419.56
8.2.180.0170.00316.50
8.2.170.0070.00722.96
8.2.160.0140.00020.38
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00019.77
8.2.110.0100.00020.48
8.2.100.0080.00417.72
8.2.90.0000.00919.13
8.2.80.0040.00419.39
8.2.70.0030.00617.50
8.2.60.0030.00617.80
8.2.50.0050.00318.07
8.2.40.0000.00819.95
8.2.30.0040.00419.49
8.2.20.0040.00417.59
8.2.10.0040.00417.62
8.2.00.0000.01017.56
8.1.280.0110.00425.92
8.1.270.0040.00423.99
8.1.260.0050.00326.35
8.1.250.0030.00628.09
8.1.240.0100.00722.37
8.1.230.0040.00720.98
8.1.220.0040.00418.77
8.1.210.0050.00618.79
8.1.200.0000.00817.10
8.1.190.0040.00417.41
8.1.180.0000.00818.10
8.1.170.0030.00518.42
8.1.160.0040.00418.73
8.1.150.0030.00518.50
8.1.140.0080.00017.43
8.1.130.0030.00317.81
8.1.120.0020.00717.33
8.1.110.0060.00317.43
8.1.100.0030.00517.29
8.1.90.0000.00717.42
8.1.80.0000.00717.36
8.1.70.0080.00017.42
8.1.60.0050.00317.52
8.1.50.0070.00017.47
8.1.40.0040.00417.35
8.1.30.0000.00817.56
8.1.20.0050.00317.60
8.1.10.0040.00417.44
8.1.00.0000.00817.43
8.0.300.0040.00419.88
8.0.290.0040.00417.29
8.0.280.0040.00418.34
8.0.270.0070.00017.22
8.0.260.0030.00316.75
8.0.250.0080.00016.91
8.0.240.0040.00416.94
8.0.230.0030.00316.84
8.0.220.0000.00716.71
8.0.210.0060.00316.88
8.0.200.0030.00316.90
8.0.190.0070.00016.94
8.0.180.0030.00316.93
8.0.170.0000.00716.87
8.0.160.0040.00416.84
8.0.150.0040.00416.88
8.0.140.0000.00716.80
8.0.130.0050.00013.35
8.0.120.0000.00716.80
8.0.110.0000.00716.98
8.0.100.0050.00316.74
8.0.90.0000.00716.79
8.0.80.0120.00616.83
8.0.70.0040.00416.77
8.0.60.0040.00416.75
8.0.50.0040.00416.77
8.0.30.0080.01117.08
8.0.20.0130.00517.40
8.0.10.0070.00016.89
8.0.00.0070.01416.72
7.4.330.0050.00016.78
7.4.320.0030.00316.54
7.4.300.0030.00316.32
7.4.290.0040.00416.36
7.4.280.0050.00216.43
7.4.270.0030.00316.55
7.4.260.0030.00313.14
7.4.250.0040.00416.50
7.4.240.0030.00316.45
7.4.230.0030.00316.63
7.4.220.0030.01516.38
7.4.210.0040.01116.43
7.4.200.0040.00416.34
7.4.190.0000.00716.57
7.4.160.0060.00916.42
7.4.150.0120.00617.40
7.4.140.0060.01117.86
7.4.130.0070.01016.52
7.4.120.0110.00516.34
7.4.110.0100.01016.30
7.4.100.0130.00316.34
7.4.90.0100.01316.60
7.4.80.0090.00919.39
7.4.70.0060.00916.34
7.4.60.0030.01716.56
7.4.50.0050.00316.26
7.4.40.0050.00922.77
7.4.30.0110.00716.50
7.4.00.0110.00214.84
7.3.330.0000.00512.90
7.3.320.0030.00312.98
7.3.310.0030.00316.17
7.3.300.0070.00016.08
7.3.290.0050.00916.18
7.3.280.0060.01116.14
7.3.270.0120.00617.40
7.3.260.0130.00818.24
7.3.250.0070.00916.21
7.3.240.0160.00316.48
7.3.230.0140.00316.39
7.3.210.0130.00416.44
7.3.200.0130.00319.39
7.3.190.0100.01316.30
7.3.180.0120.00316.42
7.3.170.0120.00316.47
7.3.160.0090.00616.43
7.3.120.0080.00714.67
7.3.110.0040.01414.74
7.3.100.0070.01014.64
7.3.90.0100.00714.80
7.3.80.0070.01114.79
7.3.70.0090.00614.45
7.3.60.0090.00614.87
7.3.50.0030.00914.82
7.3.40.0040.00714.49
7.3.30.0100.00614.57
7.3.20.0060.00616.34
7.3.10.0090.00616.45
7.3.00.0120.00316.59
7.2.330.0090.00916.37
7.2.320.0100.00716.50
7.2.310.0150.00316.46
7.2.300.0070.01016.52
7.2.290.0120.00416.61
7.2.250.0080.00814.68
7.2.240.0090.00615.00
7.2.230.0000.01815.14
7.2.220.0040.01114.88
7.2.210.0060.00815.16
7.2.200.0040.01115.07
7.2.190.0120.00014.87
7.2.180.0090.00014.58
7.2.170.0030.01014.94
7.1.330.0070.00715.49
7.1.320.0070.00415.70
7.1.310.0070.01115.78
7.1.300.0060.00615.61
7.1.290.0030.00615.66
7.1.280.0080.00815.39
7.1.270.0030.00615.50
7.1.260.0060.00615.52
7.1.70.0000.00916.69
7.1.60.0120.01219.24
7.1.50.0030.02016.72
7.1.00.0030.07322.43
7.0.200.0000.01116.70
7.0.140.0000.07722.21
7.0.60.0070.06720.03
7.0.50.0130.03317.75
7.0.40.0030.07020.19
7.0.30.0230.04320.16
7.0.20.0200.04320.16
7.0.10.0270.07020.20
7.0.00.0130.08020.17
5.6.210.0170.06720.52
5.6.200.0070.05318.09
5.6.190.0130.04320.35
5.6.180.0070.05720.58
5.6.170.0270.04720.38
5.6.160.0030.04720.38
5.6.150.0200.07318.21
5.6.140.0030.08318.21
5.6.130.0030.06718.15
5.6.120.0030.06320.89
5.6.110.0000.04721.04
5.6.100.0070.08720.98
5.6.90.0030.05320.96
5.6.80.0100.07320.41
5.6.70.0300.07320.50
5.5.350.0200.08020.30
5.5.340.0130.07317.96
5.5.330.0030.08720.25
5.5.320.0030.08320.38
5.5.310.0370.06720.27
5.5.300.0030.04017.93
5.5.290.0070.05317.88
5.5.280.0030.05020.76
5.5.270.0030.07020.76
5.5.260.0030.04020.86
5.5.250.0070.08020.71
5.5.240.0030.07720.25
5.4.450.4100.04719.55
5.4.440.3930.03019.25
5.4.430.3830.03719.57
5.4.420.3730.04019.42
5.4.410.3800.03719.43
5.4.400.3800.04319.25
5.4.390.3600.03319.09
5.4.380.3800.04018.81
5.4.370.3900.04018.92
5.4.360.3830.04318.95
5.4.350.3970.03719.13
5.4.340.2930.04018.93
5.4.320.3630.03719.13
5.4.310.2670.03319.24
5.4.300.2870.03318.95
5.4.290.3470.04719.13
5.4.280.3700.04019.13
5.4.270.3830.04719.21
5.4.260.3030.04019.16
5.4.250.3530.04319.12
5.4.240.3600.03018.92
5.4.230.3670.03719.09
5.4.220.4070.03718.92
5.4.210.3930.03719.06
5.4.200.3800.04319.08
5.4.190.3630.03719.23
5.4.180.3600.03318.91
5.4.170.3700.03718.90
5.4.160.3830.04019.14
5.4.150.3830.04019.14
5.4.140.3730.03716.29
5.4.130.3870.03316.33
5.4.120.3530.03716.20
5.4.110.4930.03316.22
5.4.100.3870.03716.41
5.4.90.3570.03716.06
5.4.80.4200.03716.44
5.4.70.3670.03016.18
5.4.60.3930.03316.45
5.4.50.3130.03316.41
5.4.40.3570.03316.16
5.4.30.3900.03316.36
5.4.20.3770.02716.43
5.4.10.3900.03716.03
5.4.00.3800.04015.89
5.3.290.3370.03714.61
5.3.280.3630.03714.45
5.3.270.3800.03714.63
5.3.260.3830.03714.55
5.3.250.3800.04014.63
5.3.240.3900.03714.54
5.3.230.3730.04314.55
5.3.220.3830.03714.40
5.3.210.3900.03314.61
5.3.200.3670.03714.44
5.3.190.3400.05314.65
5.3.180.3730.03714.59
5.3.170.3770.04314.41
5.3.160.3900.04014.40
5.3.150.4200.03714.39
5.3.140.3800.03714.41
5.3.130.3430.04014.59
5.3.120.3670.04014.39
5.3.110.3900.03314.59
5.3.100.3470.04713.93
5.3.90.3300.04313.98
5.3.80.3700.04313.85
5.3.70.4230.04014.07
5.3.60.3430.04313.80
5.3.50.3500.04313.88
5.3.40.2330.04313.80
5.3.30.3900.03313.76
5.3.20.3670.03013.49
5.3.10.3730.02713.49
5.3.00.3700.03313.53
5.2.170.3300.03011.20
5.2.160.2930.03311.03
5.2.150.3230.03311.19
5.2.140.3230.03011.19
5.2.130.3400.02010.96
5.2.120.3470.02311.25
5.2.110.3370.02311.11
5.2.100.3270.03011.12
5.2.90.3170.03310.96
5.2.80.3100.03010.93
5.2.70.3300.03010.98
5.2.60.2970.03010.88
5.2.50.3000.03310.92
5.2.40.2330.03011.01
5.2.30.2400.02711.06
5.2.20.2570.03010.83
5.2.10.2670.02310.93
5.2.00.2600.02710.78
5.1.60.2570.02310.11
5.1.50.2430.02010.04
5.1.40.2630.0239.87
5.1.30.2700.02310.41
5.1.20.2600.02710.35
5.1.10.2700.0279.97
5.1.00.2370.0279.95
5.0.50.1130.0279.67
5.0.40.1500.0179.67
5.0.30.1370.0309.67
5.0.20.1400.0279.67
5.0.10.1400.0239.67
5.0.00.1570.0339.67
4.4.90.1500.0139.67
4.4.80.1170.0179.67
4.4.70.1470.0209.67
4.4.60.1530.0179.67
4.4.50.1430.0179.67
4.4.40.1230.0239.67
4.4.30.1400.0179.67
4.4.20.1200.0139.67
4.4.10.1500.0079.67
4.4.00.1430.0279.67
4.3.110.1200.0179.67
4.3.100.1230.0179.67
4.3.90.1400.0179.67
4.3.80.1400.0279.67
4.3.70.1370.0209.67
4.3.60.1330.0209.67
4.3.50.1400.0179.67
4.3.40.1270.0209.67
4.3.30.0800.0179.67
4.3.20.0730.0209.67
4.3.10.0800.0239.67
4.3.00.0630.0139.67

preferences:
42.46 ms | 401 KiB | 5 Q