3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = str_replace("\xB2", '&sup2;', "* 170m² - 230m²"); echo $s;

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)
8.3.60.0090.00616.38
8.3.50.0140.00521.98
8.3.40.0060.00818.84
8.3.30.0110.00419.06
8.3.20.0000.00720.16
8.3.10.0040.00421.55
8.3.00.0080.00017.91
8.2.180.0110.00716.38
8.2.170.0130.00722.96
8.2.160.0070.00720.25
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0030.00621.04
8.2.110.0000.00822.24
8.2.100.0080.00318.03
8.2.90.0030.00619.23
8.2.80.0030.00617.97
8.2.70.0060.00317.50
8.2.60.0050.00217.93
8.2.50.0030.00618.07
8.2.40.0040.00418.16
8.2.30.0040.00418.17
8.2.20.0050.00317.64
8.2.10.0000.00817.94
8.2.00.0040.00417.67
8.1.280.0130.00325.92
8.1.270.0000.00822.18
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0080.00022.13
8.1.230.0120.00019.14
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0060.00317.22
8.1.190.0050.00317.10
8.1.180.0040.00418.10
8.1.170.0040.00418.37
8.1.160.0040.00421.85
8.1.150.0000.00718.71
8.1.140.0060.00317.26
8.1.130.0030.00317.73
8.1.120.0040.00417.44
8.1.110.0040.00417.40
8.1.100.0040.00417.41
8.1.90.0040.00417.42
8.1.80.0080.00017.45
8.1.70.0030.00317.30
8.1.60.0050.00317.42
8.1.50.0040.00417.39
8.1.40.0000.00817.48
8.1.30.0040.00417.55
8.1.20.0070.00017.60
8.1.10.0030.00617.46
8.1.00.0030.00617.40
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.36
8.0.270.0000.00717.24
8.0.260.0000.00717.26
8.0.250.0000.00816.96
8.0.240.0080.00016.94
8.0.230.0000.00716.95
8.0.220.0000.00716.84
8.0.210.0060.00016.81
8.0.200.0080.00016.82
8.0.190.0050.00316.93
8.0.180.0000.00716.89
8.0.170.0080.00016.88
8.0.160.0030.00316.87
8.0.150.0060.00316.79
8.0.140.0070.00016.77
8.0.130.0000.00613.29
8.0.120.0030.00716.82
8.0.110.0000.00816.70
8.0.100.0070.00016.70
8.0.90.0000.00716.70
8.0.80.0180.00316.83
8.0.70.0070.00016.70
8.0.60.0000.00716.94
8.0.50.0000.00716.89
8.0.30.0100.00817.17
8.0.20.0070.01217.40
8.0.10.0070.00017.00
8.0.00.0100.00716.72
7.4.330.0050.00015.06
7.4.320.0000.00716.34
7.4.300.0000.00616.45
7.4.290.0000.00616.42
7.4.280.0040.00416.54
7.4.270.0000.00716.39
7.4.260.0030.00316.43
7.4.250.0070.00016.50
7.4.240.0000.00716.49
7.4.230.0030.00316.34
7.4.220.0110.01116.49
7.4.210.0070.00716.51
7.4.200.0040.00416.54
7.4.160.0110.00416.19
7.4.150.0180.00417.40
7.4.140.0070.01017.86
7.4.130.0090.00916.37
7.4.120.0110.00616.42
7.4.110.0130.01016.37
7.4.100.0100.00716.53
7.4.90.0030.01316.36
7.4.80.0070.01319.39
7.4.70.0080.00816.62
7.4.60.0100.00716.43
7.4.50.0000.00816.39
7.4.40.0140.00916.39
7.4.30.0170.00616.40
7.4.00.0040.01114.91
7.3.330.0000.00613.09
7.3.320.0000.00513.02
7.3.310.0030.00316.25
7.3.300.0000.00816.08
7.3.290.0100.00316.27
7.3.280.0100.00816.25
7.3.270.0100.00717.40
7.3.260.0120.00916.09
7.3.250.0080.00916.49
7.3.240.0120.00616.35
7.3.230.0100.00716.39
7.3.210.0070.01416.21
7.3.200.0090.00819.39
7.3.190.0120.00916.36
7.3.180.0130.00316.52
7.3.170.0100.01016.27
7.3.160.0110.01116.22
7.3.120.0070.00614.52
7.3.10.0080.00616.20
7.3.00.0090.01216.48
7.2.330.0090.00916.60
7.2.320.0130.00316.66
7.2.310.0070.01016.35
7.2.300.0000.01616.68
7.2.290.0130.00316.33
7.2.130.0000.00916.57
7.2.120.0090.00616.39
7.2.110.0040.01116.43
7.2.100.0130.00316.54
7.2.90.0100.00316.39
7.2.80.0070.00716.45
7.2.70.0040.00816.80
7.2.60.0100.00316.56
7.2.50.0030.00916.32
7.2.40.0040.01216.41
7.2.30.0130.00316.44
7.2.20.0060.00916.38
7.2.10.0070.00716.32
7.2.00.0050.01017.82
7.1.250.0070.00715.53
7.1.100.0060.00618.01
7.1.70.0070.00317.14
7.1.60.0030.00716.81
7.1.50.0140.00816.56
7.1.00.0030.07722.46
7.0.200.0080.00816.75
7.0.140.0030.07322.08
7.0.100.0000.04320.11
7.0.90.0070.04319.88
7.0.80.0100.07719.96
7.0.70.0100.08019.82
7.0.60.0070.07719.87
7.0.50.0100.07020.23
7.0.40.0000.09020.14
7.0.30.0070.07320.11
7.0.20.0030.06320.02
7.0.10.0200.06719.98
7.0.00.0070.06720.05
5.6.280.0100.06720.77
5.6.250.0030.04020.67
5.6.240.0070.04320.49
5.6.230.0000.08720.57
5.6.220.0030.09020.50
5.6.210.0200.06720.38
5.6.200.0100.07720.90
5.6.190.0070.08321.06
5.6.180.0100.07720.98
5.6.170.0130.06021.03
5.6.160.0170.07720.88
5.6.150.0170.07720.96
5.6.140.0100.08020.95
5.6.130.0170.07721.12
5.6.120.0130.07720.89
5.6.110.0000.08320.95
5.6.100.0070.08321.00
5.6.90.0100.08320.90
5.6.80.0170.06720.42
5.6.70.0130.07020.46
5.6.60.0000.08320.34
5.6.50.0030.08320.41
5.6.40.0130.07320.25
5.6.30.0170.05720.27
5.6.20.0100.07320.37
5.6.10.0130.07020.22
5.6.00.0070.07720.31
5.5.380.0070.03720.34
5.5.370.0030.08720.37
5.5.360.0000.09020.50
5.5.350.0070.08020.33
5.5.340.0100.08020.82
5.5.330.0100.06720.85
5.5.320.0130.06320.78
5.5.310.0130.08020.87
5.5.300.0170.07320.79
5.5.290.0170.07020.88
5.5.280.0030.08720.72
5.5.270.0070.08020.82
5.5.260.0000.08020.58
5.5.250.0100.08320.68
5.5.240.0100.07720.14
5.5.230.0100.07720.19
5.5.220.0070.07720.12
5.5.210.0100.08020.18
5.5.200.0170.07020.22
5.5.190.0100.07320.20
5.5.180.0070.05020.06
5.5.160.0070.08020.06
5.5.150.0130.07320.17
5.5.140.0030.08020.16
5.5.130.0100.07320.23
5.5.120.0170.06720.05
5.5.110.0130.07020.21
5.5.100.0130.07020.11
5.5.90.0100.06320.06
5.5.80.0000.08719.99
5.5.70.0130.08020.04
5.5.60.0130.07320.07
5.5.50.0200.06320.05
5.5.40.0030.07019.88
5.5.30.0070.08019.95
5.5.20.0030.08019.95
5.5.10.0130.07020.08
5.5.00.0130.08020.00
5.4.450.0100.08019.33
5.4.440.0030.08319.39
5.4.430.0000.05719.44
5.4.420.0100.06019.35
5.4.410.0170.07019.26
5.4.400.0100.07719.06
5.4.390.0030.07319.00
5.4.380.0030.06718.98
5.4.370.0130.05319.13
5.4.360.0070.06719.04
5.4.350.0070.07019.05
5.4.340.0070.07319.03
5.4.320.0070.07718.98
5.4.310.0070.07319.03
5.4.300.0100.07719.12
5.4.290.0070.07719.13
5.4.280.0100.07018.94
5.4.270.0170.06318.96
5.4.260.0070.05719.14
5.4.250.0000.08019.09
5.4.240.0130.06318.89
5.4.230.0070.06719.04
5.4.220.0170.07019.04
5.4.210.0100.07718.89
5.4.200.0070.05019.23
5.4.190.0100.07019.09
5.4.180.0070.07319.04
5.4.170.0170.07318.95
5.4.160.0100.07019.05
5.4.150.0100.06318.77
5.4.140.0000.08316.23
5.4.130.0100.06316.25
5.4.120.0100.07016.21
5.4.110.0070.07016.22
5.4.100.0130.06716.41
5.4.90.0030.07016.21
5.4.80.0100.06716.25
5.4.70.0070.07716.32
5.4.60.0130.06316.19
5.4.50.0100.07316.36
5.4.40.0000.08016.39
5.4.30.0100.06316.23
5.4.20.0070.05316.23
5.4.10.0100.06716.31
5.4.00.0100.06715.75
5.3.290.0070.05714.57
5.3.280.0030.07314.58
5.3.270.0130.07314.61
5.3.260.0030.07714.58
5.3.250.0030.07314.59
5.3.240.0200.06314.59
5.3.230.0070.06314.53
5.3.220.0100.06714.53
5.3.210.0030.06714.41
5.3.200.0100.06714.51
5.3.190.0100.07714.55
5.3.180.0070.08014.52
5.3.170.0170.07014.38
5.3.160.0070.06714.43
5.3.150.0100.07014.55
5.3.140.0030.06714.53
5.3.130.0130.05314.50
5.3.120.0070.07714.40
5.3.110.0070.04314.45
5.3.100.0030.08014.02
5.3.90.0070.07014.03
5.3.80.0100.06714.00
5.3.70.0030.04313.98
5.3.60.0100.06713.79
5.3.50.0130.06313.91
5.3.40.0100.06013.91
5.3.30.0000.07713.66
5.3.20.0030.04313.56
5.3.10.0070.05313.61
5.3.00.0030.08013.64
5.2.170.0100.06311.24
5.2.160.0070.06311.24
5.2.150.0070.06311.24
5.2.140.0030.06711.24
5.2.130.0030.06011.24
5.2.120.0070.06011.24
5.2.110.0170.05311.24
5.2.100.0170.04311.24
5.2.90.0070.06011.24
5.2.80.0100.05311.24
5.2.70.0030.05711.24
5.2.60.0030.06311.24
5.2.50.0100.05311.24
5.2.40.0030.05011.24
5.2.30.0070.05711.24
5.2.20.0000.06711.24
5.2.10.0170.05011.24
5.2.00.0030.06011.24
5.1.60.0030.05011.24
5.1.50.0070.04711.24
5.1.40.0030.04711.24
5.1.30.0070.03311.24
5.1.20.0100.05311.24
5.1.10.0070.05711.24
5.1.00.0030.05311.24
5.0.50.0070.04711.24
5.0.40.0070.04311.24
5.0.30.0070.06011.24
5.0.20.0070.04011.24
5.0.10.0070.04011.24
5.0.00.0000.06711.24
4.4.90.0070.03011.24
4.4.80.0030.03011.24
4.4.70.0030.03011.24
4.4.60.0030.03311.24
4.4.50.0070.03011.24
4.4.40.0030.05011.24
4.4.30.0030.03711.24
4.4.20.0030.03311.24
4.4.10.0000.03711.24
4.4.00.0100.04711.24
4.3.110.0030.03311.24
4.3.100.0070.03011.24
4.3.90.0030.03311.24
4.3.80.0000.05011.24
4.3.70.0000.03311.24
4.3.60.0100.02711.24
4.3.50.0030.03011.24
4.3.40.0030.05011.24
4.3.30.0000.03711.24
4.3.20.0030.03311.24
4.3.10.0070.03011.24
4.3.00.0000.03311.24

preferences:
48.42 ms | 401 KiB | 5 Q