3v4l.org

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

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)
8.3.60.0110.01116.50
8.3.50.0150.00521.98
8.3.40.0130.00718.84
8.3.30.0090.00619.18
8.3.20.0060.00920.13
8.3.10.0000.01423.54
8.3.00.0040.00419.17
8.2.180.0040.01116.50
8.2.170.0140.00722.96
8.2.160.0070.01320.29
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00420.80
8.2.110.0040.00421.86
8.2.100.0110.00017.84
8.2.90.0000.00719.29
8.2.80.0040.00417.97
8.2.70.0030.00717.50
8.2.60.0030.00617.93
8.2.50.0000.00818.07
8.2.40.0040.00420.01
8.2.30.0000.00818.25
8.2.20.0080.00017.74
8.2.10.0040.00418.05
8.2.00.0000.00917.66
8.1.280.0070.00725.92
8.1.270.0060.00323.96
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0080.00023.87
8.1.230.0070.00418.97
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0080.00517.13
8.1.190.0000.00817.23
8.1.180.0080.00018.10
8.1.170.0060.00618.38
8.1.160.0040.00421.82
8.1.150.0040.00418.58
8.1.140.0000.00717.45
8.1.130.0030.00317.78
8.1.120.0040.00417.38
8.1.110.0000.00817.43
8.1.100.0080.00017.43
8.1.90.0050.00217.42
8.1.80.0050.00317.26
8.1.70.0000.00717.39
8.1.60.0080.00017.40
8.1.50.0040.00417.50
8.1.40.0000.00917.32
8.1.30.0080.00017.46
8.1.20.0040.00417.47
8.1.10.0070.00017.50
8.1.00.0040.00417.46
8.0.300.0070.00018.77
8.0.290.0000.00717.28
8.0.280.0000.00818.50
8.0.270.0000.00717.37
8.0.260.0030.00517.36
8.0.250.0000.00716.97
8.0.240.0000.00816.95
8.0.230.0030.00316.82
8.0.220.0000.00716.83
8.0.210.0000.00716.82
8.0.200.0000.00616.85
8.0.190.0000.00716.78
8.0.180.0070.00016.88
8.0.170.0000.00916.89
8.0.160.0080.00016.71
8.0.150.0070.00016.74
8.0.140.0000.00716.85
8.0.130.0030.00313.30
8.0.120.0040.00416.65
8.0.110.0050.00216.82
8.0.100.0070.00016.79
8.0.90.0040.00416.82
8.0.80.0120.00316.76
8.0.70.0000.00716.87
8.0.60.0050.00316.85
8.0.50.0050.00316.70
8.0.30.0100.00917.20
8.0.20.0050.01317.40
8.0.10.0030.00516.89
8.0.00.0060.01316.71
7.4.330.0000.00715.00
7.4.320.0030.00316.58
7.4.300.0040.00416.60
7.4.290.0030.00316.35
7.4.280.0030.00316.57
7.4.270.0030.00316.59
7.4.260.0030.00316.34
7.4.250.0000.00716.50
7.4.240.0000.00716.45
7.4.230.0030.00316.27
7.4.220.0140.00316.55
7.4.210.0030.01116.44
7.4.200.0050.00316.53
7.4.190.0000.00816.30
7.4.160.0160.00016.44
7.4.150.0160.01317.40
7.4.140.0150.00217.86
7.4.130.0080.00816.43
7.4.120.0120.00916.39
7.4.110.0110.00816.57
7.4.100.0080.00916.50
7.4.90.0100.00716.34
7.4.80.0090.00919.39
7.4.70.0130.01016.41
7.4.60.0080.00816.62
7.4.50.0020.00216.43
7.4.40.0070.01116.48
7.4.30.0000.01716.50
7.4.00.0030.01414.90
7.3.330.0060.00013.05
7.3.320.0060.00013.11
7.3.310.0040.00416.27
7.3.300.0050.00316.04
7.3.290.0030.01516.09
7.3.280.0100.00716.19
7.3.270.0000.01717.40
7.3.260.0170.00716.36
7.3.250.0030.01616.12
7.3.240.0070.01016.25
7.3.230.0130.00316.39
7.3.210.0120.00616.32
7.3.200.0030.01319.39
7.3.190.0090.00816.44
7.3.180.0060.01216.32
7.3.170.0090.00616.32
7.3.160.0060.00916.24
7.3.120.0100.00714.79
7.3.110.0060.01014.52
7.3.100.0080.00614.70
7.3.90.0040.01014.65
7.3.80.0050.00914.75
7.3.70.0090.00614.65
7.3.60.0090.00114.71
7.3.50.0030.01014.81
7.3.40.0040.00914.67
7.3.30.0080.00714.63
7.3.20.0020.01216.59
7.3.10.0110.00616.59
7.3.00.0060.00616.30
7.2.330.0030.01416.71
7.2.320.0110.00716.61
7.2.310.0110.00716.64
7.2.300.0030.01716.34
7.2.290.0100.00816.68
7.2.250.0100.00814.91
7.2.240.0100.00715.08
7.2.230.0060.01014.80
7.2.220.0030.00715.04
7.2.210.0020.01015.07
7.2.200.0020.01414.85
7.2.190.0050.00915.09
7.2.180.0070.01215.04
7.2.170.0060.00815.00
7.2.00.0090.00319.40
7.1.330.0060.00815.57
7.1.320.0020.00815.73
7.1.310.0050.00815.63
7.1.300.0040.01115.50
7.1.290.0060.00815.76
7.1.280.0060.00815.75
7.1.270.0030.00815.81
7.1.260.0060.00815.62
7.1.100.0240.00317.70
7.1.70.0000.00816.95
7.1.60.0060.00617.09
7.1.50.0110.00716.65
7.1.00.0100.07022.34
7.0.200.0000.01716.45
7.0.140.0070.07022.00
7.0.60.0100.07321.70
7.0.50.0070.07017.73
7.0.40.0030.09320.02
7.0.30.0370.07720.18
7.0.20.0200.07720.00
7.0.10.0130.08019.99
7.0.00.0070.08720.01
5.6.280.0030.07321.10
5.6.210.0100.08020.75
5.6.200.0170.07018.21
5.6.190.0070.08020.63
5.6.180.0370.07320.43
5.6.170.0230.05020.38
5.6.160.0070.08320.49
5.6.150.0000.07718.11
5.6.140.0030.04018.11
5.6.130.0070.06718.18
5.6.120.0070.08321.04
5.6.110.0100.08720.99
5.6.100.0070.07720.95
5.6.90.0100.08020.87
5.6.80.0100.05020.37
5.5.350.3700.04020.43
5.5.340.0030.04017.98
5.5.330.0070.07020.25
5.5.320.0300.05320.34
5.5.310.0230.03320.27
5.5.300.0030.04017.98
5.5.290.0070.08017.91
5.5.280.0000.04720.88
5.5.270.0000.06020.86
5.5.260.0100.03720.78
5.5.250.0070.08720.61
5.5.240.0070.07320.34
5.4.450.4130.03719.37
5.4.440.0000.05019.32
5.4.430.1600.05019.44
5.4.420.3730.04319.53
5.4.410.4200.04719.30
5.4.400.3700.04019.16
5.4.390.3700.04019.05
5.4.380.3570.03718.89
5.4.370.3600.04319.01
5.4.360.3770.03719.12
5.4.350.3700.03019.01
5.4.340.3670.04019.00
5.4.320.3800.04019.11
5.4.310.4500.03718.95
5.4.300.4570.03018.94
5.4.290.4200.03719.16
5.4.280.3770.03718.89
5.4.270.3630.03318.88
5.4.260.3570.04018.89
5.4.250.3830.03719.20
5.4.240.3830.03719.14
5.4.230.3400.04319.10
5.4.220.2870.04019.12
5.4.210.4730.03718.99
5.4.200.4630.03719.10
5.4.190.4000.03718.91
5.4.180.3700.04719.01
5.4.170.3970.03719.14
5.4.160.4530.04019.09
5.4.150.4370.04318.87
5.4.140.4430.04016.13
5.4.130.4300.03716.26
5.4.120.3830.04316.41
5.4.110.4130.03016.44
5.4.100.3430.03716.44
5.4.90.3700.02316.40
5.4.80.3600.03316.45
5.4.70.3870.03016.25
5.4.60.4000.04316.41
5.4.50.4000.03716.43
5.4.40.3800.03716.45
5.4.30.3900.04316.18
5.4.20.4100.03016.22
5.4.10.4270.03316.43
5.4.00.4130.04015.68
5.3.290.4270.03714.59
5.3.280.0000.04314.52
5.3.270.3770.03714.53
5.3.260.3830.04014.42
5.3.250.4600.03314.69
5.3.240.4300.04314.61
5.3.230.3930.03314.56
5.3.220.4000.03314.50
5.3.210.3970.04714.48
5.3.200.3900.03714.49
5.3.190.3730.04314.38
5.3.180.3170.04014.50
5.3.170.3730.03714.48
5.3.160.4000.02714.46
5.3.150.3830.03014.49
5.3.140.4070.03714.49
5.3.130.4030.03714.47
5.3.120.4100.03314.48
5.3.110.4370.03714.48
5.3.100.4670.03313.96
5.3.90.4530.03313.96
5.3.80.4230.03014.03
5.3.70.4470.03314.03
5.3.60.4500.03314.09
5.3.50.4430.03013.89
5.3.40.3630.03713.88
5.3.30.4030.03313.84
5.3.20.3800.03313.50
5.3.10.4130.04013.45
5.3.00.4600.03013.71
5.2.170.3570.02711.11
5.2.160.3130.03311.13
5.2.150.3900.02711.11
5.2.140.2830.03710.99
5.2.130.3270.02311.07
5.2.120.3530.03011.25
5.2.110.3800.03311.06
5.2.100.3670.02711.08
5.2.90.3930.03011.09
5.2.80.3730.03011.24
5.2.70.3270.03311.02
5.2.60.3000.02710.86
5.2.50.3270.02710.94
5.2.40.2800.03010.84
5.2.30.2670.03010.78
5.2.20.2530.02710.90
5.2.10.2570.02710.84
5.2.00.2330.03010.76
5.1.60.2470.0309.98
5.1.50.2800.0309.83
5.1.40.2630.02010.01
5.1.30.2930.02710.23
5.1.20.2970.02710.31
5.1.10.2770.02710.04
5.1.00.2830.02710.05
5.0.50.1270.0208.38
5.0.40.1430.0208.36
5.0.30.1170.0338.20
5.0.20.1200.0208.26
5.0.10.1270.0178.07
5.0.00.1200.0278.20
4.4.90.1370.0176.57
4.4.80.1400.0176.57
4.4.70.1230.0136.57
4.4.60.1430.0136.57
4.4.50.1570.0176.57
4.4.40.1570.0306.57
4.4.30.1570.0176.57
4.4.20.1430.0176.57
4.4.10.1430.0136.57
4.4.00.1600.0306.57
4.3.110.1230.0136.57
4.3.100.1370.0176.57
4.3.90.1170.0176.57
4.3.80.1200.0236.57
4.3.70.1200.0136.57
4.3.60.1200.0136.57
4.3.50.1170.0176.57
4.3.40.1300.0206.57
4.3.30.0630.0136.57
4.3.20.0570.0176.57
4.3.10.0600.0136.57
4.3.00.0630.0136.57

preferences:
42.3 ms | 401 KiB | 5 Q