3v4l.org

run code in 300+ PHP versions simultaneously
<?php $stack = new SplStack(); $stack->push("one"); $stack->push("two"); $serialized = $stack->serialize(); echo $stack->count(), "\n"; $stack->unserialize($serialized); echo $stack->count(), "\n"; $stack->unserialize($serialized); echo $stack->count(), "\n";

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)
8.3.60.0100.01018.30
8.3.50.0120.00316.48
8.3.40.0000.01418.84
8.3.30.0030.01018.73
8.3.20.0000.00821.95
8.3.10.0040.00421.89
8.3.00.0040.00419.68
8.2.180.0140.00316.88
8.2.170.0120.00322.96
8.2.160.0070.01120.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00419.61
8.2.110.0100.00719.38
8.2.100.0040.00717.91
8.2.90.0000.00817.66
8.2.80.0040.00419.41
8.2.70.0030.00618.04
8.2.60.0000.01019.36
8.2.50.0040.00418.10
8.2.40.0020.00520.59
8.2.30.0040.00419.14
8.2.20.0040.00418.13
8.2.10.0030.00517.91
8.2.00.0070.00018.02
8.1.280.0040.01425.92
8.1.270.0040.00422.17
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0060.00323.96
8.1.230.0070.00420.87
8.1.220.0040.00417.74
8.1.210.0050.00518.77
8.1.200.0000.00817.22
8.1.190.0000.00817.10
8.1.180.0040.00418.10
8.1.170.0050.00318.38
8.1.160.0040.00418.83
8.1.150.0000.00720.27
8.1.140.0040.00417.71
8.1.130.0030.00319.08
8.1.120.0070.00017.46
8.1.110.0000.00717.30
8.1.100.0000.00917.22
8.1.90.0000.00817.41
8.1.80.0030.00517.36
8.1.70.0030.00317.25
8.1.60.0040.00417.42
8.1.50.0030.00617.36
8.1.40.0070.00017.50
8.1.30.0030.00617.61
8.1.20.0000.00717.58
8.1.10.0030.00617.45
8.1.00.0040.00417.54
8.0.300.0030.00622.00
8.0.290.0040.00416.72
8.0.280.0000.00718.45
8.0.270.0040.00417.14
8.0.260.0030.00316.81
8.0.250.0030.00316.90
8.0.240.0060.00017.02
8.0.230.0000.00716.96
8.0.220.0070.00016.90
8.0.210.0000.00716.89
8.0.200.0000.00716.98
8.0.190.0070.00016.97
8.0.180.0050.00316.95
8.0.170.0060.00316.88
8.0.160.0070.00016.81
8.0.150.0000.00716.71
8.0.140.0000.00816.87
8.0.130.0070.00013.36
8.0.120.0060.00316.98
8.0.110.0040.00416.88
8.0.100.0080.00016.83
8.0.90.0040.00416.94
8.0.80.0080.00716.79
8.0.70.0040.00416.77
8.0.60.0000.00816.73
8.0.50.0040.00416.77
8.0.30.0090.01116.97
8.0.20.0130.00617.40
8.0.10.0040.00417.06
8.0.00.0060.01216.89
7.4.330.0060.00015.55
7.4.320.0040.00416.40
7.4.300.0060.00016.55
7.4.290.0030.00316.61
7.4.280.0070.00016.52
7.4.270.0030.00316.54
7.4.260.0030.00316.36
7.4.250.0030.00316.35
7.4.240.0030.00516.46
7.4.230.0040.00416.52
7.4.220.0060.00316.61
7.4.210.0040.01316.47
7.4.200.0000.00716.64
7.4.160.0090.00716.48
7.4.150.0000.01817.40
7.4.140.0100.00917.86
7.4.130.0070.01316.41
7.4.120.0050.01416.58
7.4.110.0070.01016.30
7.4.100.0030.01316.35
7.4.90.0110.00616.50
7.4.80.0170.00719.39
7.4.70.0130.00316.48
7.4.60.0100.00716.50
7.4.50.0130.00316.31
7.4.40.0130.00816.51
7.4.30.0040.01116.16
7.4.20.0110.01116.17
7.4.10.0090.00916.06
7.4.00.0080.00816.14
7.3.330.0000.00512.89
7.3.320.0030.00312.89
7.3.310.0030.00316.21
7.3.300.0070.00016.18
7.3.290.0060.00016.05
7.3.280.0090.00916.17
7.3.270.0080.00917.40
7.3.260.0110.01116.43
7.3.240.0090.00916.27
7.3.230.0030.01316.46
7.3.210.0070.01516.25
7.3.200.0080.00816.27
7.3.190.0090.00616.30
7.3.180.0080.00816.32
7.3.170.0070.00816.31
7.3.160.0130.00316.23
7.3.150.0090.01016.12
7.3.140.0050.01016.34
7.3.130.0040.01216.27
7.3.120.0080.00816.45
7.3.110.0140.00316.32
7.3.100.0110.00816.00
7.3.90.0110.01016.36
7.3.80.0150.00316.20
7.3.70.0090.00916.25
7.3.60.0070.01016.24
7.3.50.0100.00716.18
7.3.40.0200.00016.25
7.3.30.0110.00616.25
7.3.20.0130.00816.24
7.3.10.0070.01416.23
7.3.00.0080.00916.26
7.2.330.0080.00816.64
7.2.320.0030.01616.30
7.2.310.0140.00416.47
7.2.300.0070.01016.39
7.2.290.0070.01016.68
7.2.280.0030.01216.30
7.2.270.0070.01416.22
7.2.260.0100.01316.25
7.2.250.0130.00416.42
7.2.240.0090.00916.19
7.2.230.0150.00716.68
7.2.220.0040.01316.48
7.2.210.0060.01016.22
7.2.200.0110.00716.37
7.2.190.0050.01416.39
7.2.180.0070.01716.54
7.2.170.0100.01316.50
7.2.160.0170.00316.66
7.2.150.0140.00716.43
7.2.140.0100.01316.71
7.2.130.0150.00416.45
7.2.120.0140.00416.45
7.2.110.0110.00716.42
7.2.100.0410.01416.54
7.2.90.0140.00616.49
7.2.80.0170.00316.55
7.2.70.0070.01116.63
7.2.60.0090.01116.61
7.2.50.0120.00916.25
7.2.40.0180.00016.42
7.2.30.0120.00916.65
7.2.20.0080.01218.13
7.2.10.0150.00716.45
7.2.00.0070.01616.39
7.1.330.0120.00415.58
7.1.320.0080.00815.23
7.1.310.0060.01215.42
7.1.300.0170.00515.39
7.1.290.0190.00515.54
7.1.280.0130.00815.36
7.1.270.0030.01415.31
7.1.260.0140.01215.18
7.1.250.0030.01415.20
7.1.240.0030.01514.91
7.1.230.0090.00915.09
7.1.220.0160.00615.05
7.1.210.0100.00714.97
7.1.200.0030.01515.04
7.1.190.0040.01215.32
7.1.180.0120.00315.09
7.1.170.0090.01215.17
7.1.160.0110.00815.12
7.1.150.0030.01315.02
7.1.140.0070.01014.96
7.1.130.0050.01515.20
7.1.120.0200.00015.33
7.1.110.0050.01215.14
7.1.100.0070.01415.01
7.1.90.0110.00515.31
7.1.80.0110.00715.30
7.1.70.0100.01015.22
7.1.60.0100.01315.02
7.1.50.0100.00715.31
7.1.40.0090.00915.36
7.1.30.0120.00615.26
7.1.20.0080.00815.26
7.1.10.0070.01115.29
7.1.00.0090.00615.02
7.0.330.0140.00315.03
7.0.320.0060.01114.80
7.0.310.0150.00014.90
7.0.300.0080.00815.10
7.0.290.0130.01015.04
7.0.280.0130.00315.06
7.0.270.0130.00815.30
7.0.260.0090.00915.10
7.0.250.0060.01215.06
7.0.240.0040.01215.05
7.0.230.0070.01115.21
7.0.220.0040.01214.94
7.0.210.0120.00715.19
7.0.200.0110.01115.16
7.0.190.0070.01015.04
7.0.180.0110.00715.10
7.0.170.0150.00415.38
7.0.160.0120.00414.80
7.0.150.0140.00714.94
7.0.140.0150.00614.88
7.0.130.0030.01314.93
7.0.120.0120.00314.86
7.0.110.0090.00915.20
7.0.100.0180.00414.93
7.0.90.0120.01215.00
7.0.80.0070.01215.13
7.0.70.0080.01115.00
7.0.60.0080.01715.09
7.0.50.0140.00714.82
7.0.40.0090.01215.21
7.0.30.0270.01015.10
7.0.20.0150.00714.90
7.0.10.0060.01214.89
7.0.00.0060.01315.00
5.6.400.0090.01215.67
5.6.390.0110.01115.55
5.6.380.0140.00815.44
5.6.370.0100.01015.57
5.6.360.0100.01015.84
5.6.350.0190.00615.88
5.6.340.0100.01015.66
5.6.330.0190.00515.64
5.6.320.0120.00615.66
5.6.310.0140.01015.63
5.6.300.0180.00915.63
5.6.290.0030.02115.55
5.6.280.0100.00715.76
5.6.270.0110.00715.63
5.6.260.0040.01515.91
5.6.250.0130.01315.57
5.6.240.0080.01215.70
5.6.230.0190.00315.75
5.6.220.0110.01115.77
5.6.210.0120.01215.66
5.6.200.0180.00715.60
5.6.190.0100.01315.96
5.6.180.0090.01415.68
5.6.170.0070.01015.85
5.6.160.0080.01415.73
5.6.150.0140.01215.66
5.6.140.0180.00715.64
5.6.130.0130.01015.91
5.6.120.0130.01015.88
5.6.110.0120.00615.83
5.6.100.0100.00615.81
5.6.90.0070.01415.68
5.6.80.0110.01815.65
5.6.70.0100.01315.63
5.6.60.0100.01415.79
5.6.50.0150.00915.79
5.6.40.0120.00415.76
5.6.30.0040.01215.59
5.6.20.0060.00915.72
5.6.10.0190.00415.80
5.6.00.0070.01015.56

preferences:
35.95 ms | 400 KiB | 5 Q