3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $b = 1; public function __toString() { return 'my string'; } } $a = new A; var_dump(json_encode((string) $a)); var_dump(json_encode($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)
8.3.40.0100.00718.77
8.3.30.0030.01020.29
8.3.20.0120.00620.34
8.3.10.0100.01021.95
8.3.00.0110.00422.51
8.2.170.0110.00322.96
8.2.160.0070.00720.38
8.2.150.0090.00924.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.01019.66
8.2.110.0030.00622.25
8.2.100.0060.00619.37
8.2.90.0000.00819.00
8.2.80.0070.00019.28
8.2.70.0060.00317.50
8.2.60.0040.00417.93
8.2.50.0050.00318.07
8.2.40.0000.00818.34
8.2.30.0040.00418.11
8.2.20.0040.00417.57
8.2.10.0080.00017.68
8.2.00.0040.00417.60
8.1.270.0040.00424.66
8.1.260.0050.00326.35
8.1.250.0070.01028.09
8.1.240.0060.00323.89
8.1.230.0040.00819.08
8.1.220.0000.00817.74
8.1.210.0070.00318.77
8.1.200.0030.00617.48
8.1.190.0050.00317.53
8.1.180.0060.00319.48
8.1.170.0040.00418.63
8.1.160.0000.00822.18
8.1.150.0040.00418.61
8.1.140.0080.00017.38
8.1.130.0070.00017.93
8.1.120.0040.00417.44
8.1.110.0000.00717.42
8.1.100.0030.00617.36
8.1.90.0000.00817.51
8.1.80.0070.00017.51
8.1.70.0050.00217.38
8.1.60.0040.00417.65
8.1.50.0050.00317.55
8.1.40.0030.00617.47
8.1.30.0000.00717.55
8.1.20.0000.00817.62
8.1.10.0000.00717.55
8.1.00.0070.00417.33
8.0.300.0040.00418.77
8.0.290.0040.00417.05
8.0.280.0030.00318.50
8.0.270.0070.00017.19
8.0.260.0000.00816.82
8.0.250.0000.00716.98
8.0.240.0000.00816.79
8.0.230.0040.00416.88
8.0.220.0030.00316.93
8.0.210.0070.00016.84
8.0.200.0030.00316.85
8.0.190.0040.00416.78
8.0.180.0050.00216.88
8.0.170.0030.00616.82
8.0.160.0000.00716.82
8.0.150.0050.00316.79
8.0.140.0000.00816.91
8.0.130.0000.00613.40
8.0.120.0030.00616.86
8.0.110.0000.00716.90
8.0.100.0070.00016.83
8.0.90.0040.00416.92
8.0.80.0090.00616.82
8.0.70.0050.00216.89
8.0.60.0030.00516.82
8.0.50.0000.00716.77
8.0.30.0110.01017.07
8.0.20.0100.00917.40
8.0.10.0040.00416.90
8.0.00.0070.01516.77
7.4.330.0060.00015.00
7.4.320.0000.00616.38
7.4.300.0050.00216.65
7.4.290.0050.00216.41
7.4.280.0000.00716.61
7.4.270.0000.00716.61
7.4.260.0000.00513.27
7.4.250.0020.00516.49
7.4.240.0020.00516.59
7.4.230.0070.00016.55
7.4.220.0040.01316.71
7.4.210.0060.00916.59
7.4.200.0040.00416.46
7.4.190.0000.00716.50
7.4.160.0090.00616.68
7.4.150.0060.01017.40
7.4.140.0140.00617.86
7.4.130.0050.01116.45
7.4.120.0070.01016.41
7.4.110.0030.01416.56
7.4.100.0030.01516.66
7.4.90.0100.01416.60
7.4.80.0060.01919.39
7.4.70.0040.01816.59
7.4.60.0190.00316.34
7.4.50.0040.00416.46
7.4.40.0030.01022.77
7.4.30.0030.01316.61
7.4.00.0090.00314.98
7.3.330.0000.00513.27
7.3.320.0060.00013.25
7.3.310.0000.00716.23
7.3.300.0000.00616.15
7.3.290.0070.00716.26
7.3.280.0100.00816.25
7.3.270.0100.00717.40
7.3.260.0110.00716.29
7.3.250.0030.01416.25
7.3.240.0070.01016.29
7.3.230.0090.00916.39
7.3.210.0130.00316.42
7.3.200.0150.00419.39
7.3.190.0110.01116.38
7.3.180.0080.00816.22
7.3.170.0100.00716.46
7.3.160.0110.01116.32
7.3.120.0060.01014.60
7.3.110.0030.00614.69
7.3.100.0130.00314.52
7.3.90.0000.01714.78
7.3.80.0060.00614.57
7.3.70.0110.00414.77
7.3.60.0080.00614.73
7.3.50.0030.01014.70
7.3.40.0080.00814.40
7.3.30.0100.00014.70
7.3.20.0070.00316.51
7.3.10.0070.00716.52
7.3.00.0060.00916.72
7.2.330.0030.01416.61
7.2.320.0140.01016.61
7.2.310.0070.01016.41
7.2.300.0080.00816.77
7.2.290.0090.00616.72
7.2.240.0090.00314.74
7.2.230.0090.00614.98
7.2.220.0110.00615.18
7.2.210.0000.01514.81
7.2.200.0040.01114.77
7.2.190.0150.00014.79
7.2.180.0030.01015.04
7.2.170.0120.00314.91
7.2.160.0040.01114.73
7.2.150.0070.01016.93
7.2.140.0080.00616.86
7.2.130.0040.00716.61
7.2.120.0000.01316.91
7.2.110.0030.01016.70
7.2.100.0000.01216.69
7.2.90.0000.01716.69
7.2.80.0060.00916.56
7.2.70.0070.00716.74
7.2.60.0060.00616.86
7.2.50.0100.00016.92
7.2.40.0040.01116.90
7.2.30.0030.01016.79
7.2.20.0100.00316.78
7.2.10.0060.01216.71
7.2.00.0030.00918.14
7.1.330.0060.00915.46
7.1.320.0000.01115.65
7.1.310.0070.00715.78
7.1.300.0070.00715.71
7.1.290.0000.01015.66
7.1.280.0070.01015.58
7.1.270.0070.00715.69
7.1.260.0030.00915.80
7.1.250.0090.00615.42
7.1.100.0070.01117.96
7.1.70.0030.00516.87
7.1.60.0100.01419.43
7.1.50.0130.01017.07
7.1.00.0030.03322.33
7.0.200.0070.00016.72
7.0.140.0030.07322.12
7.0.90.0670.08019.93
7.0.80.0430.05319.96
7.0.70.0530.09019.86
7.0.60.0600.08019.89
7.0.50.0570.05720.32
7.0.40.0070.08720.14
7.0.30.0030.08320.13
7.0.20.0100.07720.09
7.0.10.0170.07320.05
7.0.00.0130.07320.04
5.6.280.0000.07320.93
5.6.240.0130.07720.63
5.6.230.0030.06720.64
5.6.220.0100.07020.57
5.6.210.0100.07720.70
5.6.200.0070.08321.05
5.6.190.0100.07021.03
5.6.180.0170.07321.04
5.6.170.0030.05021.14
5.6.160.0130.08021.11
5.6.150.0200.06321.04
5.6.140.0030.08321.12
5.6.130.0070.08020.93
5.6.120.0070.08021.03
5.6.110.0100.07721.12
5.6.100.0130.05021.00
5.6.90.0030.07720.99
5.6.80.0070.07720.34
5.6.70.0070.08020.48
5.6.60.0030.07720.45
5.6.50.0030.05320.32
5.6.40.0100.07020.45
5.6.30.0100.07020.37
5.6.20.0070.05320.32
5.6.10.0070.08320.36
5.6.00.0130.07720.41
5.5.380.0070.05020.46
5.5.370.0070.08720.31
5.5.360.0130.07720.30
5.5.350.0070.09020.43
5.5.340.0130.06020.73
5.5.330.0100.08320.93
5.5.320.0200.07020.90
5.5.310.0070.06720.86
5.5.300.0070.08320.85
5.5.290.0130.08320.64
5.5.280.0070.08320.73
5.5.270.0070.05720.87
5.5.260.0230.06020.72
5.5.250.0000.08720.70
5.5.240.0030.08320.30
5.5.230.0070.07720.02
5.5.220.0170.03320.27
5.5.210.0100.06020.19
5.5.200.0030.06020.22
5.5.190.0030.06320.25
5.5.180.0000.06720.11
5.5.160.0100.05020.18
5.5.150.0030.04320.11
5.5.140.0200.07019.99
5.5.130.0130.07320.08
5.5.120.0070.08320.29
5.5.110.0170.04320.17
5.5.100.0070.07320.13
5.5.90.0030.04320.01
5.5.80.0100.06020.15
5.5.70.0100.07320.05
5.5.60.0000.04719.96
5.5.50.0130.07320.05
5.5.40.0200.02319.96
5.5.30.0000.05020.09
5.5.20.0070.07719.96
5.5.10.0070.06720.08
5.5.00.0100.07320.13
5.4.450.0100.07319.18
5.4.440.0170.07319.48
5.4.430.0170.06319.57
5.4.420.0030.08719.53
5.4.410.0170.06719.10
5.4.400.0070.08019.23
5.4.390.0130.05018.85
5.4.380.0070.07019.13
5.4.370.0130.06319.14
5.4.360.0000.04719.20
5.4.350.0100.07019.09
5.4.340.0130.07319.07
5.4.320.0130.04018.90
5.4.310.0170.06019.23
5.4.300.0030.04319.05
5.4.290.0030.07319.18
5.4.280.0030.07019.04
5.4.270.0070.07719.12
5.4.260.0100.07319.04
5.4.250.0030.05319.08
5.4.240.0070.04319.08
5.4.230.0100.07319.03
5.4.220.0130.03719.04
5.4.210.0100.04019.13
5.4.200.0070.06319.12
5.4.190.0200.05019.15
5.4.180.0130.03318.86
5.4.170.0030.07018.91
5.4.160.0000.05018.82
5.4.150.0030.04719.14
5.4.140.0030.07716.37
5.4.130.0030.06316.20
5.4.120.0070.07716.14
5.4.110.0030.05316.50
5.4.100.0100.06716.33
5.4.90.0030.06016.44
5.4.80.0030.04016.39
5.4.70.0030.05316.48
5.4.60.0200.06016.34
5.4.50.0100.06716.36
5.4.40.0030.04316.42
5.4.30.0030.08316.44
5.4.20.0030.04016.46
5.4.10.0030.06716.32
5.4.00.0100.07015.78
5.3.290.0170.06314.67
5.3.280.0030.04714.57
5.3.270.0070.08014.69
5.3.260.0100.06714.66
5.3.250.0030.07314.65
5.3.240.0000.06014.59
5.3.230.0030.04314.60
5.3.220.0030.07014.62
5.3.210.0130.06014.53
5.3.200.0030.05314.59
5.3.190.0170.06314.62
5.3.180.0070.07314.62
5.3.170.0070.07714.63
5.3.160.0070.05014.65
5.3.150.0070.06314.55
5.3.140.0070.04014.57
5.3.130.0070.04314.65
5.3.120.0100.07314.51
5.3.110.0030.07714.47
5.3.100.0030.07714.09
5.3.90.0030.05314.04
5.3.80.0100.06713.95
5.3.70.0100.06014.14
5.3.60.0030.06013.92
5.3.50.0030.07013.97
5.3.40.0100.07013.99
5.3.30.0130.06713.96
5.3.20.0070.07013.77
5.3.10.0070.05313.58
5.3.00.0030.05013.66
5.2.170.0000.06311.25
5.2.160.0100.04311.00
5.2.150.0100.06011.26
5.2.140.0030.04711.07
5.2.130.0070.06711.21
5.2.120.0000.06711.21
5.2.110.0170.04011.24
5.2.100.0030.03311.14
5.2.90.0030.04011.11
5.2.80.0130.05311.02
5.2.70.0100.05711.20
5.2.60.0100.03311.19
5.2.50.0070.06711.05
5.2.40.0030.05711.12
5.2.30.0070.05710.98
5.2.20.0030.06010.82
5.2.10.0030.05010.80
5.2.00.0000.04010.64
5.1.60.0100.0409.84
5.1.50.0100.04010.06
5.1.40.0070.05010.04
5.1.30.0030.05310.39
5.1.20.0000.04010.44
5.1.10.0030.05010.09
5.1.00.0070.05710.15
5.0.50.0030.0478.38
5.0.40.0100.0308.40
5.0.30.0030.0678.07
5.0.20.0000.0338.25
5.0.10.0000.0508.22
5.0.00.0070.0578.23
4.4.90.0030.0337.07
4.4.80.0070.0307.07
4.4.70.0030.0337.07
4.4.60.0030.0207.07
4.4.50.0000.0377.07
4.4.40.0000.0337.07
4.4.30.0000.0277.07
4.4.20.0100.0307.07
4.4.10.0000.0377.07
4.4.00.0000.0437.07
4.3.110.0000.0407.07
4.3.100.0030.0307.07
4.3.90.0000.0307.07
4.3.80.0000.0537.07
4.3.70.0030.0277.07
4.3.60.0000.0307.07
4.3.50.0000.0237.07
4.3.40.0070.0277.07
4.3.30.0000.0377.07
4.3.20.0070.0237.07
4.3.10.0000.0237.07
4.3.00.0000.0237.07

preferences:
43.01 ms | 400 KiB | 5 Q