3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "きゃ きゅ きょ"; $encoded = json_encode($str); var_dump($encoded); $decoded = json_decode($encoded); var_dump($decoded);

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)
8.3.40.0100.00718.66
8.3.30.0100.00320.01
8.3.20.0060.00320.41
8.3.10.0080.00020.88
8.3.00.0000.00823.53
8.2.170.0150.00622.96
8.2.160.0030.01320.39
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0000.00819.45
8.2.110.0090.00019.38
8.2.100.0000.01217.78
8.2.90.0040.00419.05
8.2.80.0040.00419.28
8.2.70.0100.00017.63
8.2.60.0090.00017.92
8.2.50.0080.00018.07
8.2.40.0060.00318.22
8.2.30.0070.00019.34
8.2.20.0040.00417.68
8.2.10.0000.00917.67
8.2.00.0040.00417.58
8.1.270.0080.00023.96
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00722.36
8.1.230.0040.00720.97
8.1.220.0080.00018.77
8.1.210.0060.00318.77
8.1.200.0000.00917.23
8.1.190.0000.00717.29
8.1.180.0090.00018.10
8.1.170.0000.00818.56
8.1.160.0070.00018.77
8.1.150.0040.00418.60
8.1.140.0030.00617.24
8.1.130.0070.00317.81
8.1.120.0050.00317.46
8.1.110.0000.00817.37
8.1.100.0000.00817.36
8.1.90.0030.00317.29
8.1.80.0030.00617.30
8.1.70.0030.00317.34
8.1.60.0030.01017.51
8.1.50.0080.00017.39
8.1.40.0060.00317.47
8.1.30.0030.00517.52
8.1.20.0040.00417.60
8.1.10.0040.00417.44
8.1.00.0030.00517.39
8.0.300.0040.00419.89
8.0.290.0050.00317.05
8.0.280.0030.00318.47
8.0.270.0030.00317.09
8.0.260.0000.00616.77
8.0.250.0040.00416.85
8.0.240.0000.01016.89
8.0.230.0030.00316.91
8.0.220.0000.00716.86
8.0.210.0000.00716.85
8.0.200.0060.00016.86
8.0.190.0040.00416.77
8.0.180.0040.00416.82
8.0.170.0000.00716.84
8.0.160.0050.00216.86
8.0.150.0050.00316.65
8.0.140.0040.00416.70
8.0.130.0030.00313.23
8.0.120.0000.00816.79
8.0.110.0040.00416.84
8.0.100.0040.00416.67
8.0.90.0070.00016.66
8.0.80.0060.00916.87
8.0.70.0000.00716.75
8.0.60.0040.00416.68
8.0.50.0090.00016.70
8.0.30.0130.00716.94
8.0.20.0090.01717.40
8.0.10.0000.00716.73
8.0.00.0130.00516.72
7.4.330.0020.00216.69
7.4.320.0070.00016.53
7.4.300.0030.00316.43
7.4.290.0030.00516.49
7.4.280.0030.00316.42
7.4.270.0030.00316.43
7.4.260.0000.00613.08
7.4.250.0030.00516.40
7.4.240.0050.00216.39
7.4.230.0070.00016.45
7.4.220.0090.01316.60
7.4.210.0090.00516.43
7.4.200.0050.00216.55
7.4.190.0000.00716.46
7.4.150.0190.00617.40
7.4.140.0050.01417.86
7.4.130.0130.00516.34
7.4.120.0100.00616.34
7.4.110.0130.00516.31
7.4.100.0110.00616.40
7.4.90.0150.00916.22
7.4.80.0130.01019.39
7.4.70.0070.01016.46
7.4.60.0140.00316.53
7.4.50.0030.00516.23
7.4.40.0070.00722.77
7.4.30.0060.01216.44
7.4.00.0080.00614.62
7.3.330.0000.00512.90
7.3.320.0060.00012.98
7.3.310.0040.00416.21
7.3.300.0030.00316.17
7.3.290.0080.01216.23
7.3.280.0080.00916.15
7.3.270.0100.00717.40
7.3.260.0140.00818.24
7.3.250.0110.00616.05
7.3.240.0100.00916.16
7.3.230.0080.00816.48
7.3.210.0000.01716.19
7.3.200.0120.01219.39
7.3.190.0110.00616.22
7.3.180.0110.01116.33
7.3.170.0100.01016.29
7.3.160.0150.00616.48
7.3.120.0030.01014.90
7.2.330.0060.01216.64
7.2.320.0120.00916.68
7.2.310.0070.01716.56
7.2.300.0110.01216.65
7.2.290.0090.00616.33
7.2.110.0110.00616.30
7.2.60.0000.01216.88
7.1.200.0000.01515.57
7.1.70.0030.00517.01
7.1.60.0060.01819.17
7.1.50.0120.00917.02
7.1.00.0030.03322.37
7.0.200.0060.00316.63
7.0.140.0030.07022.08
7.0.90.0630.07719.84
7.0.80.0470.04019.89
7.0.70.0570.09019.90
7.0.60.0530.05719.88
7.0.50.0630.07720.25
7.0.40.0070.04320.15
7.0.30.0030.08720.23
7.0.20.0030.08320.11
7.0.10.0030.07019.98
7.0.00.0170.06320.09
5.6.280.0070.07021.07
5.6.240.0130.06020.69
5.6.230.0100.06020.62
5.6.220.0170.07720.64
5.6.210.0100.06020.64
5.6.200.0100.05321.03
5.6.190.0130.04320.95
5.6.180.0100.07721.02
5.6.170.0100.07321.01
5.6.160.0170.07721.11
5.6.150.0070.07020.93
5.6.140.0000.07021.08
5.6.130.0100.07720.99
5.6.120.0030.07721.04
5.6.110.0130.04021.00
5.6.100.0130.07321.05
5.6.90.0170.04321.05
5.6.80.0100.07020.41
5.6.70.0100.08020.32
5.6.60.0000.08320.49
5.6.50.0100.04720.42
5.6.40.0100.07720.45
5.6.30.0030.08020.37
5.6.20.0100.08020.39
5.6.10.0100.08320.52
5.6.00.0030.08320.34
5.5.380.0100.08020.42
5.5.370.0070.08020.55
5.5.360.0200.06720.38
5.5.350.0100.04020.43
5.5.340.0100.05320.88
5.5.330.0100.04720.84
5.5.320.0100.08020.78
5.5.310.0030.06720.90
5.5.300.0000.08320.85
5.5.290.0070.09020.79
5.5.280.0100.07020.88
5.5.270.0000.05320.89
5.5.260.0130.07320.91
5.5.250.0070.04720.71
5.5.240.0100.07720.16
5.5.230.0100.03720.01
5.5.220.0030.08320.10
5.5.210.0170.07020.23
5.5.200.0030.05020.18
5.5.190.0070.08320.23
5.5.180.0030.08720.21
5.5.160.0070.04320.11
5.5.150.0130.03320.07
5.5.140.0130.05020.26
5.5.130.0000.06720.20
5.5.120.0070.05720.27
5.5.110.0130.08020.14
5.5.100.0130.06720.00
5.5.90.0100.07320.08
5.5.80.0030.05019.97
5.5.70.0030.04319.95
5.5.60.0070.06319.98
5.5.50.0030.04720.15
5.5.40.0070.04720.12
5.5.30.0130.07020.07
5.5.20.0070.05320.10
5.5.10.0070.05019.98
5.5.00.0130.06319.90
5.4.450.0270.05719.28
5.4.440.0170.07719.37
5.4.430.0100.07719.52
5.4.420.0170.06319.30
5.4.410.0100.07719.24
5.4.400.0100.06319.05
5.4.390.0070.07319.09
5.4.380.0100.06319.03
5.4.370.0100.05718.98
5.4.360.0100.04318.81
5.4.350.0000.06319.14
5.4.340.0000.06318.98
5.4.320.0070.04018.96
5.4.310.0100.07019.05
5.4.300.0070.06319.04
5.4.290.0000.04718.96
5.4.280.0170.07018.96
5.4.270.0070.06718.96
5.4.260.0000.08018.80
5.4.250.0070.06019.13
5.4.240.0000.08718.80
5.4.230.0130.06018.95
5.4.220.0100.06018.80
5.4.210.0100.07018.78
5.4.200.0030.04018.78
5.4.190.0030.04018.89
5.4.180.0070.06018.95
5.4.170.0030.03719.04
5.4.160.0000.04719.02
5.4.150.0100.07319.13
5.4.140.0030.04316.32
5.4.130.0200.07016.33
5.4.120.0070.04016.22
5.4.110.0130.05016.23
5.4.100.0030.04316.45
5.4.90.0100.04316.33
5.4.80.0130.04716.31
5.4.70.0100.07016.41
5.4.60.0030.05016.30
5.4.50.0070.08016.28
5.4.40.0030.05716.39
5.4.30.0100.05016.18
5.4.20.0030.06716.31
5.4.10.0000.04316.30
5.4.00.0200.03715.73
5.3.290.0030.04014.65
5.3.280.0130.06714.55
5.3.270.0000.04314.59
5.3.260.0070.05014.48
5.3.250.0100.03314.44
5.3.240.0130.07314.57
5.3.230.0030.07314.57
5.3.220.0130.07014.50
5.3.210.0130.04714.39
5.3.200.0100.04014.45
5.3.190.0130.07014.53
5.3.180.0030.04314.47
5.3.170.0000.06314.56
5.3.160.0070.05014.55
5.3.150.0070.06714.55
5.3.140.0130.07014.54
5.3.130.0100.06714.41
5.3.120.0100.07714.49
5.3.110.0070.06314.38
5.3.100.0070.04714.03
5.3.90.0170.04713.84
5.3.80.0100.07313.93
5.3.70.0100.03313.88
5.3.60.0070.06014.01
5.3.50.0070.07713.94
5.3.40.0070.07313.80
5.3.30.0070.07013.90
5.3.20.0030.04013.68
5.3.10.0070.05013.64
5.3.00.0200.05713.62
5.2.170.0100.06011.00
5.2.160.0070.04011.18
5.2.150.0070.04011.16
5.2.140.0030.04710.98
5.2.130.0030.06311.05
5.2.120.0100.04710.96
5.2.110.0070.06311.05
5.2.100.0030.04311.13
5.2.90.0100.03311.12
5.2.80.0100.02711.11
5.2.70.0070.04011.13
5.2.60.0030.06711.08
5.2.50.0130.05011.00
5.2.40.0030.04010.84
5.2.30.0030.03310.93
5.2.20.0030.05710.98
5.2.10.0030.06710.77
5.2.00.0100.04710.77
5.1.60.0030.05310.77
5.1.50.0070.04010.77
5.1.40.0070.05010.77
5.1.30.0000.05010.77
5.1.20.0100.05010.77
5.1.10.0070.05710.77
5.1.00.0100.04310.77
5.0.50.0070.04310.77
5.0.40.0030.02710.77
5.0.30.0070.04010.77
5.0.20.0030.02310.77
5.0.10.0070.04310.77
5.0.00.0030.06310.77
4.4.90.0000.03710.77
4.4.80.0000.02310.77
4.4.70.0000.02310.77
4.4.60.0000.03710.77
4.4.50.0030.02310.77
4.4.40.0030.05710.77
4.4.30.0070.03010.77
4.4.20.0070.03310.77
4.4.10.0000.02710.77
4.4.00.0070.03310.77
4.3.110.0000.04010.77
4.3.100.0030.02310.77
4.3.90.0000.03010.77
4.3.80.0000.04010.77
4.3.70.0000.02710.77
4.3.60.0030.02710.77
4.3.50.0030.02310.77
4.3.40.0000.03010.77
4.3.30.0000.03710.77
4.3.20.0070.03010.77
4.3.10.0000.03710.77
4.3.00.0030.03310.77

preferences:
40.43 ms | 400 KiB | 5 Q