3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo $var1 = utf8_encode('™'); $json = json_encode($var1); echo utf8_decode(json_decode($json));

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)
8.3.60.0090.00618.30
8.3.50.0160.00321.99
8.3.40.0070.00718.67
8.3.30.0070.01118.55
8.3.20.0030.00618.64
8.3.10.0040.00421.14
8.3.00.0050.00323.52
8.2.180.0130.01016.50
8.2.170.0060.00922.96
8.2.160.0030.01020.50
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0080.00019.66
8.2.110.0060.00320.31
8.2.100.0040.00717.72
8.2.90.0000.00819.18
8.2.80.0000.00818.04
8.2.70.0070.00317.50
8.2.60.0030.00518.04
8.2.50.0000.00918.07
8.2.40.0000.00718.34
8.2.30.0040.00421.22
8.2.20.0000.00817.76
8.2.10.0040.00417.66
8.2.00.0000.00717.49
8.1.280.0140.00425.92
8.1.270.0040.00423.99
8.1.260.0030.00526.35
8.1.250.0050.00328.09
8.1.240.0040.00422.05
8.1.230.0040.00720.88
8.1.220.0030.00518.77
8.1.210.0000.00818.96
8.1.200.0000.00817.22
8.1.190.0000.00817.40
8.1.180.0060.00318.10
8.1.170.0000.00918.46
8.1.160.0050.00218.72
8.1.150.0070.00018.50
8.1.140.0000.00817.38
8.1.130.0030.00317.87
8.1.120.0000.00717.43
8.1.110.0000.00817.24
8.1.100.0030.00317.43
8.1.90.0070.00017.27
8.1.80.0030.00317.32
8.1.70.0030.00317.36
8.1.60.0020.00517.55
8.1.50.0000.00817.40
8.1.40.0040.00417.43
8.1.30.0000.00717.50
8.1.20.0040.00417.56
8.1.10.0040.00417.55
8.1.00.0040.00417.48
8.0.300.0040.00419.79
8.0.290.0000.00717.18
8.0.280.0070.00018.43
8.0.270.0030.00317.29
8.0.260.0040.00416.71
8.0.250.0070.00016.96
8.0.240.0030.00616.98
8.0.230.0070.00016.84
8.0.220.0070.00316.71
8.0.210.0040.00416.79
8.0.200.0000.00816.96
8.0.190.0040.00416.85
8.0.180.0050.00216.90
8.0.170.0000.00716.90
8.0.160.0000.00716.88
8.0.150.0000.00716.80
8.0.140.0040.00416.78
8.0.130.0030.00313.20
8.0.120.0040.00416.76
8.0.110.0040.00416.64
8.0.100.0040.00416.82
8.0.90.0030.00616.69
8.0.80.0090.00616.88
8.0.70.0030.00316.66
8.0.60.0050.00316.83
8.0.50.0040.00416.75
8.0.30.0070.01317.18
8.0.20.0080.01017.40
8.0.10.0000.00716.82
8.0.00.0090.00816.71
7.4.330.0060.00014.70
7.4.320.0060.00016.36
7.4.300.0060.00016.56
7.4.290.0070.00016.52
7.4.280.0040.00416.44
7.4.270.0030.00316.52
7.4.260.0000.00613.23
7.4.250.0000.00916.41
7.4.240.0030.00316.55
7.4.230.0070.00016.52
7.4.220.0090.00916.42
7.4.210.0050.01016.50
7.4.200.0070.00016.52
7.4.190.0030.00316.59
7.4.160.0100.00616.47
7.4.150.0090.00917.40
7.4.140.0080.01017.86
7.4.130.0080.00916.44
7.4.120.0090.00916.44
7.4.110.0080.01516.57
7.4.100.0090.01216.47
7.4.90.0030.02016.45
7.4.80.0080.00819.37
7.4.70.0100.00716.45
7.4.60.0090.00616.50
7.4.50.0030.00616.32
7.4.40.0080.00822.52
7.4.30.0110.01116.35
7.4.00.0100.00715.09
7.3.330.0050.00013.11
7.3.320.0000.01313.03
7.3.310.0060.00316.12
7.3.300.0000.00715.96
7.3.290.0090.00616.21
7.3.280.0080.00816.13
7.3.270.0150.00617.40
7.3.260.0080.00818.24
7.3.250.0110.00616.31
7.3.240.0090.00616.21
7.3.230.0100.00616.39
7.3.210.0060.01216.40
7.3.200.0070.01019.39
7.3.190.0070.01116.16
7.3.180.0130.00316.09
7.3.170.0130.00316.27
7.3.160.0100.00716.15
7.3.120.0060.00914.69
7.2.330.0130.01016.57
7.2.320.0070.01016.35
7.2.310.0070.01016.36
7.2.300.0060.00916.65
7.2.290.0110.00716.50
7.2.00.0040.01519.27
7.1.200.0000.01115.79
7.1.100.0040.00817.72
7.1.70.0030.01316.96
7.1.60.0060.01619.40
7.1.50.0070.02734.75
7.1.00.0070.07322.33
7.0.200.0030.00716.55
7.0.140.0030.07321.99
7.0.110.0530.08019.86
7.0.100.0600.08019.84
7.0.90.0530.08719.88
7.0.80.0600.09019.88
7.0.70.0530.07319.99
7.0.60.0500.05719.94
7.0.50.0200.08720.36
7.0.40.0170.07020.16
7.0.30.0070.07720.26
7.0.20.0070.07720.24
7.0.10.0070.05020.18
7.0.00.0070.08320.18
5.6.280.0100.07020.85
5.6.260.0100.07320.68
5.6.250.0100.07720.64
5.6.240.0070.07020.60
5.6.230.0130.07720.57
5.6.220.0100.08020.59
5.6.210.0030.08320.50
5.6.200.0170.07021.11
5.6.190.0130.08021.07
5.6.180.0070.08721.28
5.6.170.0170.07021.14
5.6.160.0100.08321.08
5.6.150.0070.08721.18
5.6.140.0030.08021.07
5.6.130.0000.08720.97
5.6.120.0030.09021.13
5.6.110.0070.08320.96
5.6.100.0100.06020.94
5.6.90.0170.06320.95
5.6.80.0100.04320.47
5.6.70.0030.07720.45
5.6.60.0070.08020.55
5.6.50.0030.08720.57
5.6.40.0130.07720.50
5.6.30.0030.08320.49
5.6.20.0030.08320.37
5.6.10.0070.08020.36
5.6.00.0100.07320.38
5.5.380.0030.08320.48
5.5.370.0070.08020.27
5.5.360.0030.06720.49
5.5.350.0070.05720.32
5.5.340.0130.07320.89
5.5.330.0130.08020.84
5.5.320.0100.07720.90
5.5.310.0030.08320.98
5.5.300.0070.08320.97
5.5.290.0170.06320.94
5.5.280.0000.07020.80
5.5.270.0170.07021.00
5.5.260.0070.08720.91
5.5.250.0030.08720.67
5.5.240.0100.08020.36
5.5.230.0070.07720.27
5.5.220.0100.04020.17
5.5.210.0100.07320.35
5.5.200.0100.07320.38
5.5.190.0030.05320.12
5.5.180.0130.07020.24
5.5.160.0170.05020.33
5.5.150.0070.07720.11
5.5.140.0070.08020.15
5.5.130.0070.08020.03
5.5.120.0070.07320.08
5.5.110.0070.08020.29
5.5.100.0070.07320.19
5.5.90.0070.05320.15
5.5.80.0030.08020.04
5.5.70.0070.06020.19
5.5.60.0070.03319.96
5.5.50.0100.07720.05
5.5.40.0100.07020.12
5.5.30.0030.08319.97
5.5.20.0070.04719.95
5.5.10.0000.08719.92
5.5.00.0270.06020.09
5.4.450.0200.06319.33
5.4.440.0030.08019.35
5.4.430.0030.07719.33
5.4.420.0100.07319.32
5.4.410.0100.07019.14
5.4.400.0170.07018.93
5.4.390.0130.06719.08
5.4.380.0130.07319.12
5.4.370.0070.04719.25
5.4.360.0100.07319.16
5.4.350.0000.08319.00
5.4.340.0230.06718.93
5.4.320.0100.07019.15
5.4.310.0100.07318.98
5.4.300.0100.07019.00
5.4.290.0070.06319.16
5.4.280.0100.06718.98
5.4.270.0100.07318.95
5.4.260.0030.07319.09
5.4.250.0030.05319.07
5.4.240.0070.07019.26
5.4.230.0030.04718.99
5.4.220.0130.06719.01
5.4.210.0100.07319.16
5.4.200.0130.07019.13
5.4.190.0070.07019.11
5.4.180.0070.07718.98
5.4.170.0030.06318.98
5.4.160.0070.07719.09
5.4.150.0100.04018.92
5.4.140.0100.06716.11
5.4.130.0070.06716.31
5.4.120.0130.03316.16
5.4.110.0100.05316.17
5.4.100.0070.05016.48
5.4.90.0070.05316.29
5.4.80.0030.07316.51
5.4.70.0070.07016.11
5.4.60.0100.07016.36
5.4.50.0100.06716.16
5.4.40.0070.04016.21
5.4.30.0070.04016.46
5.4.20.0070.07016.50
5.4.10.0130.07016.33
5.4.00.0070.06715.83
5.3.290.0100.05014.73
5.3.280.0100.06714.50
5.3.270.0030.07314.48
5.3.260.0100.04714.48
5.3.250.0070.06714.54
5.3.240.0100.06714.49
5.3.230.0070.06714.52
5.3.220.0000.04014.64
5.3.210.0100.07014.66
5.3.200.0070.07314.35
5.3.190.0000.07714.43
5.3.180.0030.07314.58
5.3.170.0100.06714.49
5.3.160.0070.06014.63
5.3.150.0100.07014.66
5.3.140.0170.05714.55
5.3.130.0030.07714.54
5.3.120.0130.07714.37
5.3.110.0230.05314.38
5.3.100.0100.07013.96
5.3.90.0070.07314.01
5.3.80.0100.07013.95
5.3.70.0130.06713.91
5.3.60.0070.08013.86
5.3.50.0100.06313.89
5.3.40.0070.07313.82
5.3.30.0070.07013.92
5.3.20.0100.06713.58
5.3.10.0070.07013.75
5.3.00.0070.04313.66
5.2.170.0000.04011.86
5.2.160.0000.06011.86
5.2.150.0070.04311.86
5.2.140.0070.05711.86
5.2.130.0100.05711.86
5.2.120.0030.06011.86
5.2.110.0000.07311.86
5.2.100.0070.05311.86
5.2.90.0000.06011.86
5.2.80.0030.06311.86
5.2.70.0000.04011.86
5.2.60.0030.04711.86
5.2.50.0070.04311.86
5.2.40.0030.04311.86
5.2.30.0100.06011.86
5.2.20.0070.06011.86
5.2.10.0000.06311.86
5.2.00.0100.05311.86
5.1.60.0000.05711.86
5.1.50.0000.02711.86
5.1.40.0000.05311.86
5.1.30.0030.02711.86
5.1.20.0030.02711.86
5.1.10.0000.02711.86
5.1.00.0070.02011.86
5.0.50.0030.01711.86
5.0.40.0030.01711.86
5.0.30.0000.03011.86
5.0.20.0000.02011.86
5.0.10.0000.02011.86
5.0.00.0000.03011.86
4.4.90.0030.03711.86
4.4.80.0030.02011.86
4.4.70.0000.02011.86
4.4.60.0030.03711.86
4.4.50.0100.02711.86
4.4.40.0030.03311.86
4.4.30.0000.01711.86
4.4.20.0000.01711.86
4.4.10.0000.01711.86
4.4.00.0000.02711.86
4.3.110.0000.01711.86
4.3.100.0000.01311.86
4.3.90.0000.01311.86
4.3.80.0030.02311.86
4.3.70.0030.01311.86
4.3.60.0000.01311.86
4.3.50.0000.01711.86
4.3.40.0000.02711.86
4.3.30.0000.02011.86
4.3.20.0070.01011.86
4.3.10.0030.01011.86
4.3.00.0030.01311.86

preferences:
48.67 ms | 401 KiB | 5 Q