3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo ord(''); // 0 var_dump(chr(0)); // string(1) "" var_dump('' === chr(0)); // false var_dump(chr(ord('')) === chr(0)); // true

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)
8.3.60.0090.00616.50
8.3.50.0060.01217.38
8.3.40.0000.02218.50
8.3.30.0080.00618.73
8.3.20.0030.00518.60
8.3.10.0080.00020.40
8.3.00.0060.00617.38
8.2.180.0140.00416.63
8.2.170.0110.00722.96
8.2.160.0170.00020.89
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00019.13
8.2.110.0070.00321.18
8.2.100.0040.00717.84
8.2.90.0060.00319.22
8.2.80.0030.00719.25
8.2.70.0060.00317.50
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0040.00418.13
8.2.30.0030.00617.78
8.2.20.0040.00417.39
8.2.10.0040.00417.58
8.2.00.0000.00817.45
8.1.280.0090.00925.92
8.1.270.0080.00024.66
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00722.48
8.1.230.0070.00420.98
8.1.220.0030.00617.74
8.1.210.0000.00818.89
8.1.200.0060.00317.23
8.1.190.0080.00017.28
8.1.180.0060.00318.10
8.1.170.0050.00318.84
8.1.160.0000.00818.70
8.1.150.0040.00418.45
8.1.140.0000.00817.31
8.1.130.0030.00317.62
8.1.120.0000.00817.32
8.1.110.0080.00017.27
8.1.100.0040.00417.23
8.1.90.0040.00417.32
8.1.80.0030.00317.24
8.1.70.0000.00717.25
8.1.60.0030.00617.35
8.1.50.0060.00317.18
8.1.40.0040.00417.30
8.1.30.0040.00417.42
8.1.20.0000.00817.59
8.1.10.0000.00717.44
8.1.00.0040.00417.27
8.0.300.0000.00719.90
8.0.290.0000.00716.63
8.0.280.0070.00018.38
8.0.270.0040.00417.10
8.0.260.0000.00716.69
8.0.250.0000.00816.78
8.0.240.0030.00316.85
8.0.230.0070.00016.78
8.0.220.0000.00716.67
8.0.210.0030.00316.63
8.0.200.0030.00316.78
8.0.190.0030.00516.86
8.0.180.0070.00016.83
8.0.170.0000.00716.69
8.0.160.0040.00316.79
8.0.150.0040.00416.66
8.0.140.0090.00316.66
8.0.130.0050.00013.21
8.0.120.0000.00816.70
8.0.110.0080.00016.68
8.0.100.0000.00716.81
8.0.90.0040.00416.86
8.0.80.0120.00316.77
8.0.70.0040.00416.63
8.0.60.0040.00416.73
8.0.50.0040.00416.71
8.0.30.0110.00717.09
8.0.20.0150.00816.88
8.0.10.0070.00016.66
8.0.00.0050.01216.83
7.4.330.0050.00012.81
7.4.320.0080.00016.54
7.4.300.0000.00716.43
7.4.290.0070.00016.44
7.4.280.0040.00416.43
7.4.270.0030.00316.35
7.4.260.0000.00513.13
7.4.250.0040.00416.53
7.4.240.0000.00716.47
7.4.230.0070.00016.46
7.4.220.0030.01516.41
7.4.210.0070.00816.47
7.4.200.0070.00016.41
7.4.190.0030.00316.41
7.4.160.0100.01316.54
7.4.150.0130.00316.37
7.4.140.0160.01516.51
7.4.130.0080.01116.39
7.4.120.0090.01116.48
7.4.110.0070.01016.28
7.4.100.0070.01016.30
7.4.90.0100.01116.43
7.4.80.0130.00819.39
7.4.70.0180.00016.51
7.4.60.0130.00616.44
7.4.50.0060.00316.40
7.4.40.0070.00716.25
7.4.30.0160.00816.67
7.4.00.0060.01114.72
7.3.330.0030.00313.09
7.3.320.0020.00212.94
7.3.310.0030.00316.20
7.3.300.0000.00816.17
7.3.290.0050.01316.13
7.3.280.0040.01316.22
7.3.270.0120.00616.40
7.3.260.0160.00016.48
7.3.250.0100.00816.22
7.3.240.0040.01816.57
7.3.230.0120.00916.49
7.3.210.0040.01216.30
7.3.200.0080.00816.54
7.3.190.0100.01016.41
7.3.180.0120.00916.30
7.3.170.0130.00316.21
7.3.160.0040.01316.29
7.3.120.0080.00714.51
7.3.110.0060.01314.81
7.3.100.0120.00314.62
7.3.90.0040.00814.66
7.3.80.0060.00915.07
7.3.70.0030.01314.79
7.3.60.0030.01014.70
7.3.50.0030.01014.60
7.3.40.0120.00314.57
7.3.30.0030.00614.85
7.3.20.0080.00816.51
7.3.10.0040.01116.58
7.3.00.0150.00316.58
7.2.330.0180.00016.60
7.2.320.0030.01316.46
7.2.310.0090.01516.61
7.2.300.0130.00516.62
7.2.290.0220.00016.56
7.2.250.0090.00615.13
7.2.240.0100.00714.96
7.2.230.0060.01215.22
7.2.220.0030.00714.98
7.2.210.0070.01114.96
7.2.200.0060.01314.65
7.2.190.0000.01514.96
7.2.180.0130.00314.74
7.2.170.0060.00914.91
7.2.60.0140.00416.53
7.2.50.0030.00916.83
7.2.00.0070.01019.16
7.1.330.0030.01315.50
7.1.320.0000.00915.85
7.1.310.0040.01115.50
7.1.300.0030.00615.50
7.1.290.0030.01015.48
7.1.280.0030.00615.59
7.1.270.0040.00815.65
7.1.260.0060.00915.69
7.1.200.0000.01415.91
7.1.100.0000.01118.12
7.1.70.0060.00616.74
7.1.60.0100.01019.40
7.1.50.0090.01216.73
7.1.00.0070.07022.32
7.0.200.0000.01316.64
7.0.140.0100.07022.05
7.0.120.0070.07022.27
7.0.60.0030.08319.86
7.0.50.0070.04717.83
7.0.40.0100.04020.27
7.0.30.0270.07720.13
7.0.20.0200.08720.16
7.0.10.0200.05020.33
7.0.00.0070.08320.21
5.6.210.0170.07720.70
5.6.200.0070.03718.19
5.6.190.0030.07720.27
5.6.180.0070.07020.38
5.6.170.0330.05020.45
5.6.160.0100.04020.40
5.6.150.0030.05318.21
5.6.140.0100.03718.21
5.6.130.0070.04718.07
5.6.120.0130.06721.01
5.6.110.0070.07721.00
5.6.100.0130.08321.12
5.6.90.0100.06721.07
5.6.80.0070.05020.36
5.6.70.0170.04320.36
5.5.350.0270.07020.42
5.5.340.0100.05718.02
5.5.330.0070.04720.32
5.5.320.0130.07720.40
5.5.310.0170.05720.23
5.5.300.0070.04017.93
5.5.290.0070.05017.91
5.5.280.0070.05020.96
5.5.270.0130.07320.72
5.5.260.0030.08720.72
5.5.250.0030.04020.68
5.5.240.0070.07320.11
5.4.450.0000.04719.54
5.4.440.0030.04019.48
5.4.430.0030.04019.46
5.4.420.0070.05019.49
5.4.410.0030.04718.98
5.4.400.0100.07018.93
5.4.390.0000.04018.92
5.4.380.0170.06319.18
5.4.370.0030.07019.09
5.4.360.0000.07319.14
5.4.350.0100.06718.91
5.4.340.0000.04719.14
5.4.320.0030.04318.79
5.4.310.0100.03718.79
5.4.300.0130.05019.18
5.4.290.0100.03319.07
5.4.280.0130.06019.02
5.4.270.0000.04719.00
5.4.260.0000.04319.14
5.4.250.0030.04019.07
5.4.240.0100.07319.11
5.4.230.0170.06018.99
5.4.220.0000.04019.02
5.4.210.0030.04018.91
5.4.200.0030.03718.80
5.4.190.0030.04018.79
5.4.180.0130.03319.17
5.4.170.0070.05719.17
5.4.160.0100.07019.15
5.4.150.0000.05718.79
5.4.140.0030.04316.35
5.4.130.0070.03716.48
5.4.120.0030.03316.33
5.4.110.0000.07716.32
5.4.100.0070.06016.30
5.4.90.0030.04316.39
5.4.80.0030.04016.24
5.4.70.0030.07716.13
5.4.60.0100.07016.22
5.4.50.0030.04016.26
5.4.40.0070.08316.32
5.4.30.0030.06316.21
5.4.20.0170.05016.25
5.4.10.0070.03316.21
5.4.00.0030.05715.79
5.3.290.0100.05714.59
5.3.280.0100.03714.51
5.3.270.0030.04714.42
5.3.260.0030.03714.53
5.3.250.0100.07014.53
5.3.240.0070.03714.53
5.3.230.0030.03714.38
5.3.220.0070.04014.46
5.3.210.0100.07314.49
5.3.200.0000.04014.44
5.3.190.0030.06314.46
5.3.180.0100.07314.43
5.3.170.0030.08014.48
5.3.160.0030.06714.34
5.3.150.0000.06314.48
5.3.140.0070.07314.47
5.3.130.0070.04014.63
5.3.120.0030.07314.44
5.3.110.0030.04014.55
5.3.100.0100.03014.00
5.3.90.0100.03713.92
5.3.80.0070.06013.95
5.3.70.0000.07713.96
5.3.60.0030.07313.82
5.3.50.0070.03313.96
5.3.40.0100.06313.88
5.3.30.0000.04313.84
5.3.20.0030.07013.63
5.3.10.0030.04013.60
5.3.00.0030.04713.60
5.2.170.0000.03311.02
5.2.160.0000.03711.07
5.2.150.0000.07011.03
5.2.140.0030.03011.22
5.2.130.0000.05710.99
5.2.120.0030.04311.00
5.2.110.0100.04710.98
5.2.100.0070.02711.03
5.2.90.0000.06011.00
5.2.80.0100.04010.91
5.2.70.0030.06311.08
5.2.60.0070.05310.94
5.2.50.0070.06010.89
5.2.40.0000.03010.87
5.2.30.0000.05710.87
5.2.20.0000.05310.90
5.2.10.0030.04310.92
5.2.00.0000.03310.66
5.1.60.0070.02310.05
5.1.50.0070.0339.98
5.1.40.0030.0509.97
5.1.30.0030.04710.47
5.1.20.0000.03010.50
5.1.10.0000.0309.96
5.1.00.0000.05310.09
5.0.50.0000.0408.50
5.0.40.0000.0208.30
5.0.30.0030.0278.17
5.0.20.0030.0278.34
5.0.10.0000.0238.30
5.0.00.0000.0338.16
4.4.90.0100.0278.11
4.4.80.0030.0338.11
4.4.70.0000.0178.11
4.4.60.0000.0178.11
4.4.50.0030.0208.11
4.4.40.0000.0238.11
4.4.30.0000.0238.11
4.4.20.0030.0338.11
4.4.10.0030.0338.11
4.4.00.0030.0238.11
4.3.110.0000.0378.11
4.3.100.0030.0308.11
4.3.90.0000.0178.11
4.3.80.0000.0238.11
4.3.70.0000.0178.11
4.3.60.0030.0138.11
4.3.50.0030.0178.11
4.3.40.0000.0238.11
4.3.30.0000.0178.11
4.3.20.0000.0178.11
4.3.10.0030.0138.11
4.3.00.0000.0138.11

preferences:
38.19 ms | 401 KiB | 5 Q