3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'BIT'; debug_zval_dump($a); $b=$a; debug_zval_dump($a);

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)
8.3.60.0070.01416.63
8.3.50.0120.00621.15
8.3.40.0120.00318.59
8.3.30.0070.00718.66
8.3.20.0050.00320.16
8.3.10.0040.00421.73
8.3.00.0040.00421.85
8.2.180.0110.00416.38
8.2.170.0070.00722.96
8.2.160.0140.00020.35
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00321.11
8.2.120.0050.00326.35
8.2.110.0060.00319.23
8.2.100.0040.00717.92
8.2.90.0000.00919.17
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0040.00417.91
8.2.50.0030.00518.09
8.2.40.0000.00722.32
8.2.30.0000.00719.25
8.2.20.0040.00417.65
8.2.10.0080.00018.06
8.2.00.0000.00818.05
8.1.280.0030.01825.92
8.1.270.0040.00422.06
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0060.00322.30
8.1.230.0030.00717.64
8.1.220.0050.00217.76
8.1.210.0000.00818.77
8.1.200.0000.01017.23
8.1.190.0000.00816.98
8.1.180.0030.00518.10
8.1.170.0030.00618.49
8.1.160.0040.00420.68
8.1.150.0060.00320.67
8.1.140.0000.00819.52
8.1.130.0030.00317.64
8.1.120.0000.00717.39
8.1.110.0000.00717.36
8.1.100.0030.00317.29
8.1.90.0030.00317.37
8.1.80.0000.00717.34
8.1.70.0000.00717.30
8.1.60.0040.00417.40
8.1.50.0040.00417.40
8.1.40.0000.00817.42
8.1.30.0060.00317.55
8.1.20.0000.00717.61
8.1.10.0000.00717.44
8.1.00.0040.00417.36
8.0.300.0040.00418.77
8.0.290.0050.00216.63
8.0.280.0070.00018.38
8.0.270.0030.00317.19
8.0.260.0030.00317.15
8.0.250.0070.00016.84
8.0.240.0070.00016.87
8.0.230.0040.00416.91
8.0.220.0070.00016.85
8.0.210.0070.00016.71
8.0.200.0000.00716.73
8.0.190.0000.00916.79
8.0.180.0000.00716.74
8.0.170.0050.00316.86
8.0.160.0030.00516.78
8.0.150.0040.00416.65
8.0.140.0030.00516.73
8.0.130.0030.00313.29
8.0.120.0000.00716.77
8.0.110.0040.00416.82
8.0.100.0040.00416.86
8.0.90.0000.00816.80
8.0.80.0070.00716.81
8.0.70.0000.00716.88
8.0.60.0000.00716.62
8.0.50.0000.00816.62
8.0.30.0110.00716.85
8.0.20.0090.01117.40
8.0.10.0050.00316.94
8.0.00.0080.01116.78
7.4.330.0050.00016.71
7.4.320.0000.00616.56
7.4.300.0070.00016.52
7.4.290.0030.00316.52
7.4.280.0070.00016.48
7.4.270.0060.00016.54
7.4.260.0070.00016.44
7.4.250.0030.00316.45
7.4.240.0040.00416.55
7.4.230.0030.00316.34
7.4.220.0090.00916.52
7.4.210.0070.00716.46
7.4.200.0050.00316.62
7.4.160.0080.00816.42
7.4.150.0070.01317.40
7.4.140.0120.00817.86
7.4.130.0090.00916.30
7.4.120.0110.00716.41
7.4.110.0130.00916.42
7.4.100.0040.01916.36
7.4.90.0060.01216.32
7.4.80.0030.01319.39
7.4.70.0060.01516.56
7.4.60.0090.01216.36
7.4.50.0090.00616.32
7.4.40.0110.00716.58
7.4.30.0140.01116.37
7.4.10.0070.01314.93
7.4.00.0070.00914.86
7.3.330.0060.00013.12
7.3.320.0040.00413.07
7.3.310.0030.00316.02
7.3.300.0050.00316.04
7.3.290.0000.00716.21
7.3.280.0120.00816.20
7.3.270.0110.00517.40
7.3.260.0100.00716.19
7.3.240.0100.00916.20
7.3.230.0100.00716.46
7.3.210.0070.01016.36
7.3.200.0070.01019.39
7.3.190.0060.01616.50
7.3.180.0160.00316.14
7.3.170.0100.00616.27
7.3.160.0040.01416.32
7.3.130.0070.01114.50
7.3.120.0080.01114.39
7.3.110.0070.01314.65
7.3.100.0060.00914.68
7.3.90.0050.00714.75
7.3.80.0040.00914.62
7.3.70.0080.00714.76
7.3.60.0030.01014.57
7.3.50.0000.01314.71
7.3.40.0080.00414.61
7.3.30.0100.00514.77
7.3.20.0030.00716.41
7.3.10.0050.00616.51
7.3.00.0030.00816.62
7.2.330.0100.00716.21
7.2.320.0120.00916.15
7.2.310.0120.00316.46
7.2.300.0130.00316.47
7.2.290.0030.01216.23
7.2.260.0110.00414.48
7.2.250.0090.01114.99
7.2.240.0030.01414.67
7.2.230.0060.00614.67
7.2.220.0080.00714.92
7.2.210.0060.00814.64
7.2.200.0020.01514.77
7.2.190.0030.00814.68
7.2.180.0070.00714.83
7.2.170.0050.01014.56
7.2.160.0040.01414.70
7.2.150.0060.00916.47
7.2.140.0000.01016.87
7.2.130.0070.00916.66
7.2.120.0030.01116.60
7.2.110.0100.00316.76
7.2.100.0080.00616.46
7.2.90.0050.00816.66
7.2.80.0110.00316.70
7.2.70.0090.00316.65
7.2.60.0080.00616.58
7.2.50.0030.00816.72
7.2.40.0060.00616.55
7.2.30.0040.00916.63
7.2.20.0070.00816.35
7.2.10.0070.00716.70
7.2.00.0050.00817.49
7.1.330.0060.00615.46
7.1.320.0010.00815.54
7.1.310.0080.00615.76
7.1.300.0050.00915.60
7.1.290.0090.00615.61
7.1.280.0020.00915.56
7.1.270.0050.01015.58
7.1.260.0050.00815.70
7.1.250.0090.00515.76
7.1.240.0090.00315.74
7.1.230.0060.00715.78
7.1.220.0030.01015.60
7.1.210.0030.01015.74
7.1.200.0050.00715.79
7.1.190.0110.00315.68
7.1.180.0040.00915.61
7.1.170.0050.00515.53
7.1.160.0050.00515.78
7.1.150.0060.00715.76
7.1.140.0080.00715.59
7.1.130.0060.00715.67
7.1.120.0030.00915.62
7.1.110.0070.00315.70
7.1.100.0100.00516.42
7.1.90.0050.00815.79
7.1.80.0020.00815.78
7.1.70.0050.00916.19
7.1.60.0080.00816.93
7.1.50.0050.00716.03
7.1.40.0080.00515.80
7.1.30.0040.00815.60
7.1.20.0070.00715.58
7.1.10.0060.00615.76
7.1.00.0040.02917.84
7.0.330.0060.00715.34
7.0.320.0040.01115.25
7.0.310.0010.00815.18
7.0.300.0030.00815.24
7.0.290.0030.01015.41
7.0.280.0100.00315.31
7.0.270.0050.00815.14
7.0.260.0030.00815.27
7.0.250.0090.00615.38
7.0.240.0020.00815.35
7.0.230.0050.00915.24
7.0.220.0070.00315.19
7.0.210.0020.00915.09
7.0.200.0060.00615.63
7.0.190.0030.00815.37
7.0.180.0060.00515.22
7.0.170.0070.00815.36
7.0.160.0070.00515.43
7.0.150.0050.00815.32
7.0.140.0050.00715.33
7.0.130.0030.00915.36
7.0.120.0060.00715.17
7.0.110.0040.00915.27
7.0.100.0050.01015.30
7.0.90.0060.00215.15
7.0.80.0010.00915.27
7.0.70.0080.00315.47
7.0.60.0120.02617.56
7.0.50.0050.02016.17
7.0.40.0100.01615.68
7.0.30.0140.02315.67
7.0.20.0130.02615.65
7.0.10.0070.02315.71
7.0.00.0040.01915.69
5.6.400.0040.01114.48
5.6.390.0030.01214.05
5.6.380.0070.00514.18
5.6.370.0020.00814.21
5.6.360.0060.00514.12
5.6.350.0040.01114.10
5.6.340.0050.00714.05
5.6.330.0090.00714.00
5.6.320.0050.00914.15
5.6.310.0070.00814.36
5.6.300.0100.00414.44
5.6.290.0060.00514.44
5.6.280.0090.02216.34
5.6.270.0030.00814.06
5.6.260.0030.00914.27
5.6.250.0020.01214.24
5.6.240.0040.00514.14
5.6.230.0020.00814.26
5.6.220.0080.00514.23
5.6.210.0080.02016.40
5.6.200.0080.03115.50
5.6.190.0070.01816.31
5.6.180.0060.01816.26
5.6.170.0120.01816.27
5.6.160.0050.03416.31
5.6.150.0020.03415.47
5.6.140.0040.02115.31
5.6.130.0070.03215.42
5.6.120.0050.03316.52
5.6.110.0050.02916.55
5.6.100.0030.02116.47
5.6.90.0040.01916.45
5.6.80.0020.03216.16
5.6.70.0080.00514.11
5.6.60.0040.00914.02
5.6.50.0070.00713.97
5.6.40.0120.00513.97
5.6.30.0100.00314.07
5.6.20.0060.00714.19
5.6.10.0050.00914.18
5.6.00.0030.01214.04
5.5.380.0070.00412.68
5.5.370.0060.00312.64
5.5.360.0040.00712.67
5.5.350.0110.02915.25
5.5.340.0060.02714.43
5.5.330.0080.02715.21
5.5.320.0100.02315.17
5.5.310.0130.03015.13
5.5.300.0070.02914.46
5.5.290.0050.02914.49
5.5.280.0020.02915.37
5.5.270.0070.03115.38
5.5.260.0060.02915.34
5.5.250.0050.03515.25
5.5.240.0100.02915.21
5.5.230.0080.00812.52
5.5.220.0040.00912.68
5.5.210.0100.00512.73
5.5.200.0070.00712.54
5.5.190.0080.00812.49
5.5.180.0010.01212.65
5.5.170.0050.01112.50
5.5.160.0050.00912.67
5.5.150.0050.00512.60
5.5.140.0060.00512.68
5.5.130.0050.00812.61
5.5.120.0030.00912.44
5.5.110.0030.00412.49
5.5.100.0000.01012.62
5.5.90.0030.00912.57
5.5.80.0020.01112.57
5.5.70.0080.00412.45
5.5.60.0030.00812.54
5.5.50.0030.00912.66
5.5.40.0010.00812.48
5.5.30.0050.01012.49
5.5.20.0030.00912.53
5.5.10.0060.00612.46
5.5.00.0060.00412.60

preferences:
54.59 ms | 401 KiB | 5 Q