3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var1 = 'ccc'; $var2 = $var1; debug_zval_dump($var1, $var2); echo "===========\n"; $var2 .= 'xxx'; debug_zval_dump($var1, $var2);

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)
8.3.70.0060.01216.63
8.3.60.0100.01018.55
8.3.50.0080.00822.92
8.3.40.0000.01918.75
8.3.30.0100.00318.96
8.3.20.0070.00020.30
8.3.10.0080.00023.71
8.3.00.0040.00419.51
8.2.180.0150.00016.38
8.2.170.0110.00322.96
8.2.160.0110.00420.27
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0040.00426.16
8.2.120.0000.00821.10
8.2.110.0030.00620.23
8.2.100.0100.00018.16
8.2.90.0030.00519.26
8.2.80.0060.00317.97
8.2.70.0000.00817.75
8.2.60.0050.00317.93
8.2.50.0050.00318.07
8.2.40.0060.00318.28
8.2.30.0080.00019.29
8.2.20.0050.00317.57
8.2.10.0000.00718.05
8.2.00.0000.00817.67
8.1.280.0070.00725.92
8.1.270.0050.00323.86
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.82
8.1.230.0040.00719.16
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.22
8.1.190.0050.00316.88
8.1.180.0000.00818.10
8.1.170.0060.00318.59
8.1.160.0070.00021.91
8.1.150.0050.00318.80
8.1.140.0040.00417.37
8.1.130.0030.00317.77
8.1.120.0000.00717.38
8.1.110.0030.00517.28
8.1.100.0070.00017.27
8.1.90.0030.00317.38
8.1.80.0050.00217.38
8.1.70.0030.00317.31
8.1.60.0030.00517.51
8.1.50.0040.00417.41
8.1.40.0040.00417.48
8.1.30.0040.00417.46
8.1.20.0070.00017.62
8.1.10.0070.00017.52
8.1.00.0080.00017.32
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0050.00318.43
8.0.270.0000.00717.25
8.0.260.0000.00617.20
8.0.250.0040.00416.76
8.0.240.0000.00616.79
8.0.230.0030.00516.83
8.0.220.0030.00616.83
8.0.210.0000.00716.84
8.0.200.0030.00316.74
8.0.190.0050.00216.86
8.0.180.0000.00716.75
8.0.170.0050.00216.88
8.0.160.0030.00316.82
8.0.150.0040.00416.72
8.0.140.0020.00516.70
8.0.130.0030.00313.29
8.0.120.0080.00016.78
8.0.110.0030.00316.82
8.0.100.0040.00416.85
8.0.90.0040.00416.91
8.0.80.0050.01116.79
8.0.70.0040.00416.72
8.0.60.0000.00816.82
8.0.50.0000.00716.79
8.0.30.0140.00917.04
8.0.20.0060.01317.40
8.0.10.0000.00716.95
8.0.00.0090.00816.52
7.4.330.0050.00015.09
7.4.320.0000.00616.52
7.4.300.0040.00416.42
7.4.290.0000.00716.45
7.4.280.0050.00416.39
7.4.270.0070.00016.52
7.4.260.0000.00716.48
7.4.250.0040.00416.37
7.4.240.0000.00716.44
7.4.230.0000.00716.55
7.4.220.0120.00616.37
7.4.210.0060.00916.55
7.4.200.0000.00716.62
7.4.160.0160.00616.25
7.4.150.0180.00017.40
7.4.140.0100.01117.86
7.4.130.0110.00816.36
7.4.120.0100.00716.47
7.4.110.0070.01116.45
7.4.100.0110.00516.39
7.4.90.0110.00716.56
7.4.80.0140.01219.39
7.4.70.0080.00816.30
7.4.60.0100.01316.52
7.4.50.0050.00316.37
7.4.40.0100.01316.38
7.4.30.0080.00816.49
7.4.00.0080.01114.87
7.3.330.0000.00513.04
7.3.320.0000.00513.17
7.3.310.0040.00416.34
7.3.300.0030.00316.21
7.3.290.0030.01616.18
7.3.280.0040.01316.26
7.3.270.0100.00717.40
7.3.260.0130.01016.51
7.3.250.0080.01016.29
7.3.240.0100.00716.48
7.3.230.0040.01116.39
7.3.210.0100.01316.48
7.3.200.0060.01519.39
7.3.190.0030.01616.51
7.3.180.0060.00916.11
7.3.170.0000.01616.27
7.3.160.0090.00816.27
7.3.120.0080.01014.75
7.3.110.0100.00714.76
7.3.100.0060.00914.83
7.3.90.0030.01114.79
7.3.80.0060.00814.76
7.3.70.0100.00214.81
7.3.60.0060.00714.62
7.3.50.0050.00914.59
7.3.40.0070.00914.77
7.3.30.0050.00814.58
7.3.20.0040.01016.55
7.3.10.0030.00916.53
7.3.00.0090.00616.39
7.2.330.0130.00316.32
7.2.320.0100.00916.41
7.2.310.0100.01016.46
7.2.300.0100.00516.49
7.2.290.0130.00316.39
7.2.250.0090.00914.87
7.2.240.0050.01314.77
7.2.230.0050.01214.78
7.2.220.0050.01014.95
7.2.210.0020.01215.00
7.2.200.0070.00614.77
7.2.190.0050.00715.03
7.2.180.0090.00514.87
7.2.170.0110.00514.88
7.2.160.0090.00614.56
7.2.150.0060.00916.71
7.2.140.0130.00016.75
7.2.130.0090.00816.68
7.2.120.0110.00516.88
7.2.110.0080.00416.73
7.2.100.0080.00616.78
7.2.90.0080.00716.83
7.2.80.0050.00916.80
7.2.70.0060.00816.78
7.2.60.0050.00816.80
7.2.50.0110.00716.87
7.2.40.0070.00716.73
7.2.30.0070.00716.85
7.2.20.0060.00816.67
7.2.10.0090.00816.50
7.2.00.0090.00417.55
7.1.330.0060.00915.90
7.1.320.0060.01015.62
7.1.310.0050.00815.89
7.1.300.0050.00515.73
7.1.290.0040.00715.75
7.1.280.0040.01115.90
7.1.270.0060.00615.98
7.1.260.0050.00815.88
7.1.250.0080.00715.82
7.1.240.0080.00415.66
7.1.230.0100.00515.73
7.1.220.0090.00615.75
7.1.210.0080.00715.51
7.1.200.0080.00915.65
7.1.190.0050.00815.80
7.1.180.0100.00515.66
7.1.170.0090.00515.56
7.1.160.0060.00815.44
7.1.150.0070.00515.76
7.1.140.0050.01315.80
7.1.130.0080.00615.80
7.1.120.0080.00815.81
7.1.110.0050.00815.86
7.1.100.0050.00716.53
7.1.90.0080.00615.61
7.1.80.0100.00515.77
7.1.70.0060.00916.04
7.1.60.0080.00616.90
7.1.50.0050.00815.98
7.1.40.0140.00215.79
7.1.30.0110.00515.84
7.1.20.0070.00815.76
7.1.10.0100.00515.68
7.1.00.0040.03117.90
7.0.330.0050.00815.41
7.0.320.0090.00715.36
7.0.310.0080.00315.41
7.0.300.0020.00915.22
7.0.290.0110.00415.24
7.0.280.0090.00315.38
7.0.270.0080.00915.17
7.0.260.0030.00815.23
7.0.250.0050.01115.22
7.0.240.0090.00715.30
7.0.230.0070.00915.22
7.0.220.0090.00515.10
7.0.210.0050.00715.21
7.0.200.0020.01015.78
7.0.190.0080.00615.44
7.0.180.0050.00715.43
7.0.170.0080.00515.38
7.0.160.0050.00715.46
7.0.150.0070.00515.39
7.0.140.0040.02917.43
7.0.130.0090.00615.28
7.0.120.0070.01015.49
7.0.110.0090.01015.27
7.0.100.0120.03016.88
7.0.90.0090.02917.00
7.0.80.0060.02816.83
7.0.70.0110.01816.93
7.0.60.0100.03116.92
7.0.50.0140.02417.15
7.0.40.0090.02815.74
7.0.30.0070.03215.68
7.0.20.0070.03115.57
7.0.10.0030.02815.58
7.0.00.0050.02515.57
5.6.400.0110.00014.39
5.6.390.0090.00314.44
5.6.380.0120.00414.35
5.6.370.0060.00614.42
5.6.360.0020.01114.13
5.6.350.0040.00914.38
5.6.340.0070.00514.31
5.6.330.0090.00614.09
5.6.320.0040.00814.28
5.6.310.0060.00813.93
5.6.300.0070.00514.22
5.6.290.0050.00914.17
5.6.280.0070.02716.59
5.6.270.0080.00514.25
5.6.260.0020.01314.33
5.6.250.0060.03416.30
5.6.240.0020.03416.36
5.6.230.0010.02816.35
5.6.220.0060.02516.37
5.6.210.0040.03516.18
5.6.200.0050.02916.50
5.6.190.0060.02716.50
5.6.180.0050.03116.46
5.6.170.0090.02616.31
5.6.160.0070.03016.42
5.6.150.0100.02816.61
5.6.140.0070.02716.42
5.6.130.0060.02416.40
5.6.120.0040.03116.57
5.6.110.0040.03016.55
5.6.100.0070.03016.52
5.6.90.0070.02316.47
5.6.80.0040.02416.29
5.6.70.0060.02316.21
5.6.60.0090.02016.17
5.6.50.0110.02416.32
5.6.40.0040.02316.22
5.6.30.0050.03216.31
5.6.20.0060.02516.13
5.6.10.0040.03216.23
5.6.00.0070.02816.17
5.5.380.0040.03015.10
5.5.370.0070.03015.14
5.5.360.0070.02615.18
5.5.350.0100.02915.05
5.5.340.0030.02615.36
5.5.330.0050.03015.33
5.5.320.0070.01815.36
5.5.310.0130.02815.35
5.5.300.0060.02115.33
5.5.290.0080.02715.32
5.5.280.0030.02415.22
5.5.270.0060.01815.23
5.5.260.0050.02415.31
5.5.250.0050.03015.09
5.5.240.0100.02215.00
5.5.230.0080.03115.18
5.5.220.0070.02814.89
5.5.210.0060.02915.03
5.5.200.0070.02615.00
5.5.190.0090.01715.23
5.5.180.0090.01515.09
5.5.170.0080.00312.50
5.5.160.0050.03315.10
5.5.150.0120.02415.09
5.5.140.0090.02814.95
5.5.130.0090.02514.96
5.5.120.0080.02715.08
5.5.110.0050.02715.05
5.5.100.0030.01515.04
5.5.90.0070.02815.07
5.5.80.0010.03315.08
5.5.70.0070.02014.98
5.5.60.0050.03115.00
5.5.50.0060.02515.07
5.5.40.0060.02514.94
5.5.30.0040.01814.84
5.5.20.0020.02114.89
5.5.10.0050.01514.95
5.5.00.0040.01814.97
5.4.450.0080.02813.76
5.4.440.0080.02713.82
5.4.430.0030.03313.73
5.4.420.0060.02613.71
5.4.410.0040.01813.62
5.4.400.0040.02713.56
5.4.390.0050.02113.56
5.4.380.0020.02813.60
5.4.370.0040.02513.37
5.4.360.0060.02813.46
5.4.350.0060.02113.53
5.4.340.0060.02913.68
5.4.330.0050.00410.91
5.4.320.0060.02813.61
5.4.310.0010.02213.50
5.4.300.0060.02313.67
5.4.290.0060.01813.52
5.4.280.0030.02013.58
5.4.270.0020.03213.52
5.4.260.0040.02413.58
5.4.250.0060.02813.56
5.4.240.0070.01313.66
5.4.230.0020.02313.61
5.4.220.0080.02013.59
5.4.210.0090.01413.35
5.4.200.0050.02813.61
5.4.190.0040.02613.60
5.4.180.0060.01513.66
5.4.170.0050.01213.48
5.4.160.0050.01413.41
5.4.150.0030.01813.54
5.4.140.0030.01712.67
5.4.130.0030.01512.66
5.4.120.0010.01912.62
5.4.110.0060.01812.61
5.4.100.0020.01612.85
5.4.90.0040.01612.56
5.4.80.0070.02112.58
5.4.70.0050.01512.71
5.4.60.0040.01512.75
5.4.50.0080.01512.70
5.4.40.0060.01212.71
5.4.30.0030.02412.68
5.4.20.0050.01212.68
5.4.10.0070.01312.72
5.4.00.0030.01912.57
5.3.290.0000.04612.57
5.3.280.0110.03512.40
5.3.270.0100.02012.45
5.3.260.0040.02312.53
5.3.250.0050.02012.54
5.3.240.0020.02212.50
5.3.230.0010.02312.34
5.3.220.0070.01712.28
5.3.210.0080.01712.42
5.3.200.0050.02012.39
5.3.190.0060.01712.46
5.3.180.0020.02312.35
5.3.170.0080.01812.53
5.3.160.0030.02212.51
5.3.150.0090.01512.58
5.3.140.0070.03812.45
5.3.130.0050.01812.38
5.3.120.0000.02312.37
5.3.110.0060.02012.36
5.3.100.0030.02312.08
5.3.90.0000.03412.12
5.3.80.0050.01812.04
5.3.70.0070.01912.03
5.3.60.0050.03412.08
5.3.50.0020.02112.08
5.3.40.0090.01511.92
5.3.30.0050.01812.10
5.3.20.0030.01811.82
5.3.10.0020.02111.70
5.3.00.0020.02311.77
5.2.170.0050.02510.54
5.2.160.0030.02010.45
5.2.150.0030.01910.51
5.2.140.0000.02010.44
5.2.130.0030.01710.45
5.2.120.0020.01810.49
5.2.110.0020.01910.52
5.2.100.0020.01810.42
5.2.90.0030.01510.51
5.2.80.0030.01610.46
5.2.70.0060.01310.53
5.2.60.0030.01510.43
5.2.50.0030.01610.42
5.2.40.0030.01610.43
5.2.30.0010.01810.48
5.2.20.0000.01910.36
5.2.10.0030.01410.43
5.2.00.0010.01810.37
5.1.60.0020.0159.99
5.1.50.0010.0159.99
5.1.40.0050.0139.91
5.1.30.0020.01710.18
5.1.20.0030.01410.13
5.1.10.0010.01610.03
5.1.00.0030.01310.04
5.0.50.0000.0129.25
5.0.40.0050.0139.18
5.0.30.0060.0259.13
5.0.20.0020.0229.07
5.0.10.0030.0189.04
5.0.00.0000.0309.07
4.4.90.0000.0129.04
4.4.80.0030.0089.04
4.4.70.0020.0099.04
4.4.60.0020.0109.04
4.4.50.0040.0109.04
4.4.40.0000.0159.04
4.4.30.0000.0129.04
4.4.20.0020.0109.04
4.4.10.0000.0129.04
4.4.00.0040.0129.04
4.3.110.0020.0139.04
4.3.100.0030.0179.04
4.3.90.0030.0179.04
4.3.80.0000.0179.04
4.3.70.0020.0189.04
4.3.60.0010.0189.04
4.3.50.0000.0129.04
4.3.40.0020.0199.04
4.3.30.0000.0209.04
4.3.20.0040.0179.04
4.3.10.0020.0179.04
4.3.00.0000.0179.04

preferences:
49.21 ms | 401 KiB | 5 Q