3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_encode('Hello')); var_dump(json_decode('Hello')); // wrong var_dump(json_decode("Hello")); // wrong var_dump(json_decode('"Hello"')); // correct var_dump(json_decode("'Hello'")); // wrong

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)
8.3.60.0110.00416.38
8.3.50.0130.00921.92
8.3.40.0100.00318.52
8.3.30.0110.00418.92
8.3.20.0000.00820.30
8.3.10.0080.00021.76
8.3.00.0030.00518.96
8.2.180.0040.01118.41
8.2.170.0070.00722.96
8.2.160.0070.01322.08
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0000.00819.48
8.2.110.0030.00622.20
8.2.100.0040.00817.78
8.2.90.0040.00418.93
8.2.80.0030.00517.97
8.2.70.0050.00317.38
8.2.60.0040.00417.91
8.2.50.0040.00418.07
8.2.40.0000.00918.03
8.2.30.0040.00419.29
8.2.20.0040.00417.64
8.2.10.0050.00317.82
8.2.00.0000.00717.42
8.1.280.0060.00825.92
8.1.270.0040.00418.71
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0090.00023.96
8.1.230.0080.00318.97
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0030.00617.23
8.1.190.0050.00317.23
8.1.180.0070.00018.10
8.1.170.0040.00418.34
8.1.160.0030.00521.85
8.1.150.0000.00718.63
8.1.140.0000.00717.30
8.1.130.0030.00317.75
8.1.120.0030.00517.32
8.1.110.0000.00817.30
8.1.100.0070.00017.20
8.1.90.0030.00317.32
8.1.80.0040.00317.32
8.1.70.0000.00717.19
8.1.60.0050.00317.35
8.1.50.0040.00417.29
8.1.40.0000.00717.29
8.1.30.0040.00417.52
8.1.20.0030.00517.55
8.1.10.0000.00817.16
8.1.00.0050.00217.25
8.0.300.0030.00618.77
8.0.290.0000.00716.58
8.0.280.0000.00718.29
8.0.270.0000.00717.05
8.0.260.0060.00017.10
8.0.250.0030.00316.81
8.0.240.0030.00316.80
8.0.230.0040.00416.72
8.0.220.0000.00816.71
8.0.210.0000.00716.77
8.0.200.0040.00416.68
8.0.190.0040.00316.85
8.0.180.0060.00316.78
8.0.170.0080.00016.73
8.0.160.0040.00416.67
8.0.150.0030.00316.82
8.0.140.0040.00716.73
8.0.130.0070.00013.22
8.0.120.0000.00816.55
8.0.110.0070.00016.59
8.0.100.0070.00016.71
8.0.90.0070.00016.81
8.0.80.0120.00916.74
8.0.70.0050.00216.61
8.0.60.0000.00716.71
8.0.50.0020.00516.69
8.0.30.0210.01016.95
8.0.20.0080.01317.40
8.0.10.0040.00416.89
8.0.00.0100.01116.58
7.4.330.0030.00315.03
7.4.320.0030.00316.46
7.4.300.0050.00216.30
7.4.290.0030.00316.50
7.4.280.0030.00816.48
7.4.270.0000.00716.34
7.4.260.0030.00616.41
7.4.250.0030.00316.34
7.4.240.0020.00516.43
7.4.230.0030.00316.24
7.4.220.0100.01116.51
7.4.210.0070.01316.40
7.4.200.0070.00016.46
7.4.160.0160.00616.37
7.4.150.0080.01117.40
7.4.140.0080.01017.86
7.4.130.0110.00816.27
7.4.120.0090.01016.38
7.4.110.0140.01116.32
7.4.100.0130.00516.34
7.4.90.0140.00316.33
7.4.80.0070.01419.39
7.4.70.0060.01216.48
7.4.60.0030.01316.49
7.4.50.0000.00616.35
7.4.40.0120.00916.34
7.4.30.0030.01816.27
7.4.00.0000.01714.84
7.3.330.0000.00813.06
7.3.320.0000.00512.86
7.3.310.0000.00716.16
7.3.300.0030.00316.14
7.3.290.0030.01016.13
7.3.280.0120.00616.14
7.3.270.0130.00617.40
7.3.260.0040.02016.14
7.3.250.0150.00516.14
7.3.240.0040.01216.46
7.3.230.0040.01216.39
7.3.210.0120.00616.25
7.3.200.0120.00319.39
7.3.190.0030.01316.44
7.3.180.0100.00716.28
7.3.170.0130.00816.27
7.3.160.0040.01216.38
7.2.330.0160.02116.18
7.2.320.0060.01316.52
7.2.310.0100.00716.41
7.2.300.0080.00816.34
7.2.290.0030.01416.46
7.2.60.0030.00916.30
7.2.00.0040.00819.18
7.1.200.0000.00815.43
7.1.100.0060.00618.00
7.1.70.0000.00717.04
7.1.60.0140.01019.46
7.1.50.0070.00416.86
7.1.00.0070.07322.30
7.0.200.0000.01016.48
7.0.140.0070.06322.09
7.0.90.0100.06019.91
7.0.80.0130.07020.02
7.0.70.0000.06019.93
7.0.60.0600.08319.95
7.0.50.0430.04320.37
7.0.40.0100.05720.17
7.0.30.0070.04320.05
7.0.20.0100.08320.11
7.0.10.0030.06020.14
7.0.00.0100.06320.14
5.6.280.0030.07321.09
5.6.240.0070.07320.49
5.6.230.0130.07720.62
5.6.220.0100.07020.55
5.6.210.0100.08020.64
5.6.200.0100.08320.96
5.6.190.0000.04721.07
5.6.180.0100.07721.03
5.6.170.0070.07021.16
5.6.160.0100.03721.13
5.6.150.0000.05021.15
5.6.140.0030.06320.94
5.6.130.0170.07021.04
5.6.120.0070.05721.16
5.6.110.0130.08021.06
5.6.100.0030.05020.93
5.6.90.0130.05321.07
5.6.80.0070.05020.39
5.6.70.0130.03320.54
5.6.60.0170.03720.46
5.6.50.0070.04020.42
5.6.40.0030.04720.41
5.6.30.0100.05720.37
5.6.20.0100.04320.38
5.6.10.0100.04020.35
5.6.00.0100.06020.38
5.5.380.0030.08020.34
5.5.370.0000.06320.53
5.5.360.0030.04720.34
5.5.350.0100.03720.42
5.5.340.0130.07020.83
5.5.330.0100.06720.63
5.5.320.0070.04720.87
5.5.310.0030.07720.91
5.5.300.0130.07720.92
5.5.290.0030.07020.82
5.5.280.0170.07320.72
5.5.270.0170.06020.91
5.5.260.0100.06020.85
5.5.250.0030.06020.70
5.5.240.0030.04020.25
5.5.230.0030.04720.14
5.5.220.0070.07020.00
5.5.210.0100.05720.16
5.5.200.0000.08320.19
5.5.190.0030.08720.26
5.5.180.0000.05020.23
5.5.160.0030.04020.23
5.5.150.0130.07020.07
5.5.140.0170.05020.11
5.5.130.0070.07320.11
5.5.120.0030.08720.21
5.5.110.0070.07020.06
5.5.100.0200.07320.05
5.5.90.0130.03720.12
5.5.80.0170.06320.03
5.5.70.0100.06020.04
5.5.60.0100.05320.05
5.5.50.0100.05720.07
5.5.40.0000.08020.13
5.5.30.0000.05719.94
5.5.20.0000.04720.07
5.5.10.0100.04720.03
5.5.00.0000.08020.02
5.4.450.0130.07019.29
5.4.440.0100.05019.14
5.4.430.0070.08019.14
5.4.420.0130.04319.20
5.4.410.0030.08019.22
5.4.400.0070.03719.03
5.4.390.0100.06718.81
5.4.380.0100.06019.14
5.4.370.0070.04318.79
5.4.360.0000.05019.16
5.4.350.0230.05719.07
5.4.340.0070.07319.23
5.4.320.0070.07318.98
5.4.310.0100.04319.15
5.4.300.0130.06719.03
5.4.290.0100.06718.95
5.4.280.0170.03719.09
5.4.270.0130.07018.97
5.4.260.0130.06718.80
5.4.250.0100.07019.02
5.4.240.0100.07318.80
5.4.230.0100.04319.12
5.4.220.0070.06018.97
5.4.210.0100.06719.12
5.4.200.0030.04718.97
5.4.190.0030.07319.03
5.4.180.0000.08319.16
5.4.170.0130.05319.11
5.4.160.0130.06718.96
5.4.150.0030.04718.96
5.4.140.0070.07016.24
5.4.130.0030.06316.32
5.4.120.0070.04016.27
5.4.110.0030.08316.32
5.4.100.0100.07016.23
5.4.90.0070.07316.34
5.4.80.0070.06716.29
5.4.70.0130.06716.39
5.4.60.0070.06716.36
5.4.50.0030.04316.23
5.4.40.0200.05716.43
5.4.30.0170.03016.18
5.4.20.0070.07016.37
5.4.10.0100.05716.28
5.4.00.0130.05715.78
5.3.290.0070.07714.60
5.3.280.0200.06714.45
5.3.270.0070.04714.58
5.3.260.0100.07314.59
5.3.250.0100.07314.58
5.3.240.0170.06014.60
5.3.230.0100.06714.57
5.3.220.0070.07714.57
5.3.210.0070.07714.55
5.3.200.0030.04714.55
5.3.190.0000.05314.42
5.3.180.0100.07314.51
5.3.170.0070.04314.37
5.3.160.0170.06714.43
5.3.150.0000.08014.55
5.3.140.0070.07714.54
5.3.130.0100.07014.56
5.3.120.0070.05014.55
5.3.110.0030.04714.48
5.3.100.0030.07014.04
5.3.90.0130.06013.88
5.3.80.0070.06713.92
5.3.70.0130.05313.87
5.3.60.0030.05014.00
5.3.50.0170.06313.93
5.3.40.0100.04313.93
5.3.30.0030.04713.76
5.3.20.0000.07013.45
5.3.10.0030.05313.41
5.3.00.0070.04013.50
5.2.170.0030.06010.95
5.2.160.0000.05711.09
5.2.150.0030.04310.98
5.2.140.0030.04010.96
5.2.130.0100.02710.93
5.2.120.0070.05710.94
5.2.110.0100.05710.96
5.2.100.0070.06011.12
5.2.90.0000.06711.10
5.2.80.0030.05311.01
5.2.70.0130.05011.09
5.2.60.0000.05311.04
5.2.50.0070.06011.05
5.2.40.0130.05310.91
5.2.30.0070.06010.99
5.2.20.0100.06010.92
5.2.10.0070.05310.91
5.2.00.0100.05310.76
5.1.60.0000.03310.04
5.1.50.0030.0539.98
5.1.40.0030.03310.01
5.1.30.0030.04310.28
5.1.20.0030.05010.26
5.1.10.0100.04310.08
5.1.00.0070.04710.08
5.0.50.0030.0308.53
5.0.40.0030.0238.46
5.0.30.0030.0678.06
5.0.20.0000.0338.23
5.0.10.0030.0438.15
5.0.00.0000.0408.23
4.4.90.0000.0207.36
4.4.80.0000.0377.36
4.4.70.0000.0237.36
4.4.60.0100.0237.36
4.4.50.0000.0377.36
4.4.40.0000.0337.36
4.4.30.0030.0337.36
4.4.20.0070.0337.36
4.4.10.0000.0337.36
4.4.00.0000.0507.36
4.3.110.0030.0337.36
4.3.100.0070.0207.36
4.3.90.0070.0307.36
4.3.80.0000.0277.36
4.3.70.0000.0177.36
4.3.60.0000.0377.36
4.3.50.0030.0337.36
4.3.40.0070.0337.36
4.3.30.0070.0307.36
4.3.20.0000.0407.36
4.3.10.0000.0207.36
4.3.00.0030.0337.36

preferences:
48.23 ms | 401 KiB | 5 Q