3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "foobar"; $t = $s; $u = $s; debug_zval_dump($s);

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)
8.3.40.0120.00318.54
8.3.30.0070.00718.42
8.3.20.0070.00020.13
8.3.10.0030.00621.79
8.3.00.0000.00721.77
8.2.170.0060.00922.96
8.2.160.0070.00720.32
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0040.00420.62
8.2.120.0080.00026.35
8.2.110.0040.00419.39
8.2.100.0000.01117.80
8.2.90.0040.00419.09
8.2.80.0080.00017.97
8.2.70.0040.00417.50
8.2.60.0000.00917.90
8.2.50.0080.00018.09
8.2.40.0040.00420.41
8.2.30.0030.00319.30
8.2.20.0000.00717.46
8.2.10.0040.00418.05
8.2.00.0040.00417.98
8.1.270.0030.00522.23
8.1.260.0000.00728.09
8.1.250.0040.00428.09
8.1.240.0080.00022.52
8.1.230.0080.00317.57
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0060.00317.25
8.1.190.0060.00317.11
8.1.180.0030.00518.10
8.1.170.0080.00018.59
8.1.160.0000.00720.62
8.1.150.0040.00420.53
8.1.140.0040.00419.43
8.1.130.0030.00317.54
8.1.120.0070.00017.29
8.1.110.0040.00417.38
8.1.100.0000.00817.37
8.1.90.0030.00717.27
8.1.80.0030.00717.29
8.1.70.0070.00017.29
8.1.60.0060.00317.57
8.1.50.0080.00017.34
8.1.40.0170.00317.48
8.1.30.0030.00517.47
8.1.20.0060.00317.46
8.1.10.0020.00517.41
8.1.00.0070.00017.20
8.0.300.0000.00818.77
8.0.290.0000.00716.63
8.0.280.0000.00718.37
8.0.270.0040.00417.15
8.0.260.0070.00017.09
8.0.250.0030.00316.90
8.0.240.0040.00416.82
8.0.230.0030.00316.86
8.0.220.0050.00516.66
8.0.210.0030.00316.81
8.0.200.0000.00616.78
8.0.190.0000.00916.77
8.0.180.0050.00316.74
8.0.170.0080.00016.73
8.0.160.0040.00416.70
8.0.150.0040.00416.68
8.0.140.0000.00816.84
8.0.130.0030.00313.29
8.0.120.0050.00316.80
8.0.110.0000.00816.68
8.0.100.0000.00716.63
8.0.90.0000.00716.71
8.0.80.0080.00716.80
8.0.70.0040.00416.90
8.0.60.0040.00416.82
8.0.50.0030.00516.62
8.0.30.0070.01717.05
8.0.20.0120.00817.40
8.0.10.0030.00517.00
8.0.00.0080.00916.71
7.4.330.0000.00616.79
7.4.320.0040.00416.45
7.4.300.0070.00016.43
7.4.290.0030.00316.32
7.4.280.0000.00716.53
7.4.270.0060.00016.54
7.4.260.0000.00716.51
7.4.250.0000.00816.41
7.4.240.0040.00416.55
7.4.230.0030.00316.53
7.4.220.0140.00616.58
7.4.210.0110.00316.48
7.4.200.0040.00416.32
7.4.160.0130.01016.48
7.4.150.0180.00617.40
7.4.140.0100.01117.86
7.4.130.0110.00816.32
7.4.120.0120.01116.45
7.4.110.0120.00416.46
7.4.100.0080.01016.31
7.4.90.0140.00316.47
7.4.80.0030.01319.39
7.4.70.0030.01716.52
7.4.60.0100.00716.39
7.4.50.0040.01116.32
7.4.40.0110.00616.21
7.4.30.0170.00716.52
7.4.00.0110.00714.61
7.3.330.0030.00313.04
7.3.320.0020.00213.09
7.3.310.0000.00616.18
7.3.300.0000.00616.15
7.3.290.0090.00916.21
7.3.280.0080.01116.23
7.3.270.0070.01017.40
7.3.260.0100.00716.37
7.3.250.0120.00816.31
7.3.240.0110.00616.19
7.3.230.0120.00616.39
7.3.210.0030.01316.07
7.3.200.0140.00419.39
7.3.190.0130.00216.41
7.3.180.0060.01016.45
7.3.170.0110.00616.52
7.3.160.0070.01016.50
7.2.330.0140.00316.50
7.2.320.0120.00616.39
7.2.310.0100.00716.55
7.2.300.0100.00716.57
7.2.290.0030.01416.42
7.2.60.0100.00316.72
7.2.00.0040.01119.01
7.1.200.0070.00315.36
7.1.100.0070.00717.90
7.1.70.0000.00717.13
7.1.60.0110.01419.40
7.1.50.0060.00916.87
7.1.00.0030.07722.40
7.0.200.0350.00614.30
7.0.100.0130.08719.98
7.0.90.0130.05719.95
7.0.80.0070.08319.94
7.0.70.0070.06719.86
7.0.60.0230.06320.01
7.0.50.0230.07020.34
7.0.40.0100.04719.92
7.0.30.0000.08720.03
7.0.20.0070.07020.14
7.0.10.0100.03720.08
7.0.00.0100.08320.14
5.6.280.0070.05721.03
5.6.250.0100.05020.65
5.6.240.0030.05320.75
5.6.230.0030.08020.63
5.6.220.0100.03320.61
5.6.210.0070.07720.46
5.6.200.0070.08320.96
5.6.190.0100.08021.09
5.6.180.0070.08320.89
5.6.170.0070.05721.04
5.6.160.0070.08021.13
5.6.150.0170.07321.02
5.6.140.0170.08321.10
5.6.130.0070.06321.00
5.6.120.0000.06721.08
5.6.110.0030.04721.15
5.6.100.0030.04721.09
5.6.90.0130.07320.99
5.6.80.0030.05020.42
5.6.70.0000.06720.30
5.6.60.0170.04020.40
5.6.50.0070.04320.41
5.6.40.0030.06320.30
5.6.30.0130.04020.39
5.6.20.0070.06720.37
5.6.10.0230.06020.43
5.6.00.0170.07320.40
5.5.380.0100.07320.44
5.5.370.0130.04320.42
5.5.360.0130.08020.39
5.5.350.0070.03720.46
5.5.340.0200.03320.89
5.5.330.0130.07320.92
5.5.320.0100.08020.88
5.5.310.0030.05720.86
5.5.300.0070.08720.75
5.5.290.0130.06720.86
5.5.280.0030.05320.89
5.5.270.0030.08020.89
5.5.260.0030.06320.76
5.5.250.0200.05720.68
5.5.240.0030.04720.25
5.5.230.0100.08020.27
5.5.220.0200.05020.25
5.5.210.0130.04020.25
5.5.200.0000.04320.21
5.5.190.0200.07320.26
5.5.180.0030.07720.13
5.5.160.0070.07720.13
5.5.150.0100.06020.21
5.5.140.0030.07020.22
5.5.130.0070.05020.22
5.5.120.0130.07320.22
5.5.110.0100.03320.13
5.5.100.0070.08020.02
5.5.90.0100.06720.08
5.5.80.0170.03720.08
5.5.70.0130.07319.93
5.5.60.0030.07320.04
5.5.50.0030.08320.05
5.5.40.0200.05719.92
5.5.30.0100.07720.04
5.5.20.0130.06320.02
5.5.10.0030.04320.12
5.5.00.0130.07319.98
5.4.450.0070.08719.11
5.4.440.0070.04719.48
5.4.430.0230.03019.29
5.4.420.0070.06019.43
5.4.410.0070.07019.31
5.4.400.0130.06718.88
5.4.390.0000.04718.96
5.4.380.0100.07319.09
5.4.370.0130.07019.14
5.4.360.0000.04318.94
5.4.350.0070.05719.17
5.4.340.0070.06018.79
5.4.320.0100.06718.90
5.4.310.0130.05719.05
5.4.300.0070.04019.13
5.4.290.0100.07719.14
5.4.280.0100.03319.09
5.4.270.0070.04718.78
5.4.260.0070.07319.11
5.4.250.0100.06718.77
5.4.240.0070.07319.02
5.4.230.0130.04718.96
5.4.220.0100.07719.05
5.4.210.0100.04019.22
5.4.200.0100.06719.13
5.4.190.0100.07319.13
5.4.180.0070.06319.06
5.4.170.0070.07019.07
5.4.160.0170.06319.04
5.4.150.0130.04719.07
5.4.140.0030.06716.36
5.4.130.0070.07316.39
5.4.120.0070.07316.36
5.4.110.0070.07016.30
5.4.100.0000.07316.34
5.4.90.0100.03716.26
5.4.80.0100.07016.22
5.4.70.0000.04716.28
5.4.60.0030.06716.30
5.4.50.0070.07016.39
5.4.40.0070.07716.26
5.4.30.0130.07016.27
5.4.20.0070.05716.40
5.4.10.0100.04316.33
5.4.00.0030.03715.70
5.3.290.0030.04714.65
5.3.280.0030.04714.42
5.3.270.0030.04314.59
5.3.260.0030.07014.59
5.3.250.0100.06314.46
5.3.240.0030.04714.60
5.3.230.0100.07014.45
5.3.220.0170.06314.47
5.3.210.0030.07714.43
5.3.200.0070.07014.57
5.3.190.0030.08014.43
5.3.180.0100.06714.53
5.3.170.0070.03314.55
5.3.160.0030.03714.42
5.3.150.0030.06714.54
5.3.140.0030.05014.52
5.3.130.0070.05014.54
5.3.120.0000.04014.49
5.3.110.0030.07714.45
5.3.100.0000.04313.97
5.3.90.0130.06013.88
5.3.80.0030.04014.00
5.3.70.0030.04013.97
5.3.60.0130.06313.99
5.3.50.0100.03313.91
5.3.40.0130.06013.90
5.3.30.0000.05713.89
5.3.20.0070.03013.46
5.3.10.0070.04013.61
5.3.00.0100.03013.49
5.2.170.0030.05712.15
5.2.160.0000.03012.15
5.2.150.0070.05012.15
5.2.140.0030.06712.15
5.2.130.0000.06712.15
5.2.120.0030.04012.15
5.2.110.0030.03012.15
5.2.100.0030.05012.15
5.2.90.0000.06712.15
5.2.80.0030.03712.15
5.2.70.0070.06012.15
5.2.60.0000.06712.15
5.2.50.0070.06012.15
5.2.40.0030.04712.15
5.2.30.0030.06012.15
5.2.20.0100.05712.15
5.2.10.0000.03312.15
5.2.00.0100.05312.15
5.1.60.0030.04312.15
5.1.50.0070.05012.15
5.1.40.0030.05312.15
5.1.30.0030.04712.15
5.1.20.0030.05712.15
5.1.10.0070.05312.15
5.1.00.0030.05012.15
5.0.50.0070.02712.15
5.0.40.0030.02712.15
5.0.30.0100.05012.15
5.0.20.0100.02312.15
5.0.10.0000.02712.15
5.0.00.0000.05312.15
4.4.90.0070.03012.15
4.4.80.0030.03012.15
4.4.70.0030.03312.15
4.4.60.0070.02312.15
4.4.50.0070.01312.15
4.4.40.0070.04712.15
4.4.30.0000.03712.15
4.4.20.0030.03712.15
4.4.10.0030.03012.15
4.4.00.0000.05012.15
4.3.110.0030.03312.15
4.3.100.0030.03012.15
4.3.90.0070.03012.15
4.3.80.0000.06712.15
4.3.70.0000.03312.15
4.3.60.0000.02712.15
4.3.50.0030.02312.15
4.3.40.0030.04012.15
4.3.30.0030.03312.15
4.3.20.0000.02012.15
4.3.10.0000.02012.15
4.3.00.0030.02712.15

preferences:
49.33 ms | 400 KiB | 5 Q