3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_encode("//\\\\", JSON_UNESCAPED_SLASHES));

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)
8.3.60.0130.00716.38
8.3.50.0080.01022.85
8.3.40.0070.00718.54
8.3.30.0070.00718.98
8.3.20.0070.00020.28
8.3.10.0070.00023.67
8.3.00.0060.00319.15
8.2.180.0120.00318.06
8.2.170.0090.00622.96
8.2.160.0060.00920.43
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00421.10
8.2.110.0030.00620.56
8.2.100.0030.00917.91
8.2.90.0000.00818.95
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0040.00417.90
8.2.50.0000.00818.07
8.2.40.0070.00017.97
8.2.30.0040.00418.07
8.2.20.0000.00717.49
8.2.10.0000.00717.83
8.2.00.0000.00817.42
8.1.280.0070.01425.92
8.1.270.0000.00924.02
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0140.00723.70
8.1.230.0040.00819.22
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0040.00417.10
8.1.190.0040.00417.00
8.1.180.0040.00418.10
8.1.170.0050.00318.61
8.1.160.0000.00721.93
8.1.150.0040.00418.66
8.1.140.0000.00817.24
8.1.130.0000.00717.73
8.1.120.0000.00717.36
8.1.110.0070.00017.34
8.1.100.0030.00317.33
8.1.90.0040.00417.25
8.1.80.0020.00517.29
8.1.70.0070.00017.31
8.1.60.0040.00417.35
8.1.50.0060.00317.40
8.1.40.0070.00017.37
8.1.30.0030.00517.49
8.1.20.0030.00617.52
8.1.10.0070.00017.40
8.1.00.0050.00217.20
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00718.38
8.0.270.0020.00517.15
8.0.260.0030.00317.13
8.0.250.0030.00316.85
8.0.240.0000.00816.82
8.0.230.0000.00716.75
8.0.220.0030.00316.65
8.0.210.0000.00716.66
8.0.200.0060.00016.85
8.0.190.0000.00816.84
8.0.180.0030.00316.83
8.0.170.0040.00416.80
8.0.160.0000.00716.77
8.0.150.0000.00716.69
8.0.140.0000.00816.74
8.0.130.0060.00013.23
8.0.120.0000.00816.73
8.0.110.0000.00716.64
8.0.100.0030.00516.70
8.0.90.0040.00416.57
8.0.80.0000.01516.75
8.0.70.0000.00716.83
8.0.60.0040.00416.71
8.0.50.0040.00416.56
8.0.30.0120.01117.02
8.0.20.0150.00817.40
8.0.10.0030.00516.74
8.0.00.0080.01116.72
7.4.330.0050.00015.02
7.4.320.0060.00016.48
7.4.300.0000.00616.46
7.4.290.0020.00516.48
7.4.280.0000.00716.38
7.4.270.0000.00716.35
7.4.260.0040.00416.46
7.4.250.0050.00316.41
7.4.240.0000.00716.43
7.4.230.0030.00316.34
7.4.220.0250.00716.32
7.4.210.0070.00716.27
7.4.200.0030.00316.47
7.4.160.0100.00616.20
7.4.150.0060.01117.40
7.4.140.0060.01317.86
7.4.130.0120.00716.45
7.4.120.0120.00716.30
7.4.110.0130.00316.43
7.4.100.0080.01216.33
7.4.90.0110.01016.45
7.4.80.0110.00719.39
7.4.70.0030.01416.36
7.4.60.0090.00616.29
7.4.50.0040.00416.06
7.4.40.0130.00316.18
7.4.30.0130.00316.38
7.4.00.0030.01114.93
7.3.330.0030.00313.01
7.3.320.0050.00012.98
7.3.310.0070.00016.09
7.3.300.0070.00016.13
7.3.290.0120.00316.19
7.3.280.0130.00716.17
7.3.270.0060.01217.40
7.3.260.0120.01116.40
7.3.250.0090.00716.33
7.3.240.0130.01016.39
7.3.230.0110.00516.39
7.3.210.0090.00916.13
7.3.200.0120.00919.39
7.3.190.0040.01216.38
7.3.180.0100.00516.44
7.3.170.0040.01116.27
7.3.160.0160.00016.25
7.2.330.0060.01016.26
7.2.320.0120.00616.20
7.2.310.0070.01116.33
7.2.300.0320.00716.19
7.2.290.0110.01116.38
7.2.80.0120.00316.57
7.2.00.0030.01019.32
7.1.200.0070.00715.73
7.1.100.0980.00716.11
7.1.70.0000.00816.71
7.1.60.0000.02419.46
7.1.50.0070.01716.83
7.1.00.0030.07722.31
7.0.200.0000.00716.37
7.0.140.0070.07322.16
7.0.90.0000.09019.89
7.0.80.0600.07319.88
7.0.70.0500.07019.87
7.0.60.0100.06719.87
7.0.50.0070.04320.42
7.0.40.0030.09020.09
7.0.30.0170.07320.11
7.0.20.0100.08320.11
7.0.10.0330.05720.05
7.0.00.0100.08720.03
5.6.280.0100.06721.14
5.6.240.0000.08320.66
5.6.230.0070.08720.67
5.6.220.0070.05720.57
5.6.210.0070.04720.67
5.6.200.0070.08021.06
5.6.190.0100.08021.05
5.6.180.0070.08721.07
5.6.170.0100.08021.06
5.6.160.0070.08320.93
5.6.150.0070.05721.16
5.6.140.0100.08721.00
5.6.130.0030.05021.17
5.6.120.0100.06020.95
5.6.110.0070.08721.00
5.6.100.0100.08020.98
5.6.90.0130.08320.99
5.6.80.0070.06320.51
5.6.70.0030.05020.54
5.6.60.0130.08720.40
5.6.50.0130.07320.49
5.6.40.0000.04720.43
5.6.30.0130.04020.36
5.6.20.0070.06020.48
5.6.10.0070.06020.48
5.6.00.0100.08020.27
5.5.380.0000.04720.36
5.5.370.0070.08720.48
5.5.360.0130.07020.35
5.5.350.0070.07720.45
5.5.340.0030.05020.77
5.5.330.0130.05020.91
5.5.320.0130.06720.77
5.5.310.0200.06720.88
5.5.300.0100.07020.91
5.5.290.0130.07320.84
5.5.280.0070.05720.81
5.5.270.0030.08720.91
5.5.260.0070.05720.87
5.5.250.0070.08720.54
5.5.240.0130.06320.14
5.5.230.0170.07320.13
5.5.220.0100.05020.25
5.5.210.0200.06320.17
5.5.200.0000.05320.18
5.5.190.0070.05320.12
5.5.180.0030.05020.21
5.5.160.0130.06720.23
5.5.150.0100.07720.07
5.5.140.0100.08020.18
5.5.130.0070.04720.21
5.5.120.0070.05320.21
5.5.110.0170.07020.25
5.5.100.0000.08320.15
5.5.90.0030.04720.05
5.5.80.0030.07319.97
5.5.70.0130.07020.07
5.5.60.0070.06019.95
5.5.50.0100.07019.92
5.5.40.0170.07019.95
5.5.30.0030.05320.05
5.5.20.0000.05020.04
5.5.10.0130.07720.02
5.5.00.0100.07320.08
5.4.450.0070.07719.43
5.4.440.0230.06719.40
5.4.430.0000.05019.22
5.4.420.0100.08019.34
5.4.410.0130.07319.27
5.4.400.0170.07019.23
5.4.390.0100.08019.03
5.4.380.0130.06319.05
5.4.370.0070.07718.98
5.4.360.0030.07719.12
5.4.350.0100.06019.00
5.4.340.0100.07019.09
5.4.320.0030.04719.12
5.4.310.0170.06318.95
5.4.300.0070.07018.81
5.4.290.0100.07718.94
5.4.280.0170.06719.09
5.4.270.0030.04719.10
5.4.260.0070.07319.07
5.4.250.0070.07719.11
5.4.240.0070.04319.02
5.4.230.0070.07019.06
5.4.220.0100.05019.07
5.4.210.0200.06319.24
5.4.200.0100.07019.04
5.4.190.0070.07718.97
5.4.180.0030.07719.09
5.4.170.0200.06319.11
5.4.160.0070.04719.20
5.4.150.0070.07719.21
5.4.140.0230.05316.29
5.4.130.0130.06716.23
5.4.120.0070.07016.31
5.4.110.0070.03716.21
5.4.100.0130.07016.25
5.4.90.0030.07316.21
5.4.80.0100.07016.22
5.4.70.0030.04016.43
5.4.60.0030.05716.21
5.4.50.0000.08316.41
5.4.40.0100.06716.33
5.4.30.0100.06716.39
5.4.20.0030.07316.23
5.4.10.0130.06316.20
5.4.00.0030.05315.70
5.3.290.0030.04714.62
5.3.280.0070.04314.58
5.3.270.0030.07014.42
5.3.260.0070.07714.51
5.3.250.0070.08314.56
5.3.240.0100.06314.57
5.3.230.0030.04314.45
5.3.220.0030.07314.52
5.3.210.0070.07314.47
5.3.200.0070.05014.55
5.3.190.0130.07014.43
5.3.180.0100.07314.55
5.3.170.0130.05714.42
5.3.160.0070.06714.54
5.3.150.0070.05014.54
5.3.140.0130.06014.51
5.3.130.0070.07014.52
5.3.120.0200.05014.54
5.3.110.0030.04714.53
5.3.100.0030.07314.03
5.3.90.0030.07313.97
5.3.80.0100.07713.92
5.3.70.0100.05313.96
5.3.60.0000.07313.93
5.3.50.0130.06013.91
5.3.40.0070.03713.90
5.3.30.0030.06713.88
5.3.20.0000.05013.68
5.3.10.0070.04313.42
5.3.00.0070.04313.50
5.2.170.0070.05711.14
5.2.160.0030.04311.18
5.2.150.0030.06711.06
5.2.140.0000.06311.16
5.2.130.0100.05711.14
5.2.120.0030.06711.16
5.2.110.0070.03011.15
5.2.100.0070.04710.89
5.2.90.0000.06010.96
5.2.80.0070.06311.05
5.2.70.0030.06011.08
5.2.60.0000.06010.89
5.2.50.0000.06710.80
5.2.40.0070.04710.81
5.2.30.0030.03311.04
5.2.20.0030.02710.79
5.2.10.0070.05310.78
5.2.00.0070.05710.73
5.1.60.0030.03010.01
5.1.50.0030.05010.05
5.1.40.0030.0439.95
5.1.30.0070.05010.39
5.1.20.0100.05010.27
5.1.10.0000.02710.11
5.1.00.0000.02710.09
5.0.50.0070.0338.52
5.0.40.0000.0308.39
5.0.30.0100.0608.22
5.0.20.0070.0338.30
5.0.10.0000.0278.27
5.0.00.0030.0378.15
4.4.90.0000.0377.61
4.4.80.0030.0377.61
4.4.70.0000.0377.61
4.4.60.0030.0207.61
4.4.50.0000.0377.61
4.4.40.0000.0337.61
4.4.30.0070.0307.61
4.4.20.0000.0307.61
4.4.10.0030.0337.61
4.4.00.0070.0477.61
4.3.110.0000.0377.61
4.3.100.0030.0237.61
4.3.90.0030.0337.61
4.3.80.0030.0407.61
4.3.70.0000.0207.61
4.3.60.0000.0177.61
4.3.50.0030.0337.61
4.3.40.0070.0337.61
4.3.30.0000.0237.61
4.3.20.0030.0207.61
4.3.10.0000.0177.61
4.3.00.0070.0307.61

preferences:
47.97 ms | 401 KiB | 5 Q