3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var=''; var_dump($var); $var[0]='l'; var_dump($var);

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)
8.3.60.0070.00716.48
8.3.50.0140.00521.99
8.3.40.0090.00618.67
8.3.30.0110.00418.50
8.3.20.0040.00420.34
8.3.10.0080.00021.95
8.3.00.0030.00619.38
8.2.180.0110.00416.38
8.2.170.0030.01022.96
8.2.160.0030.01022.13
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0030.00619.23
8.2.120.0000.00726.35
8.2.110.0030.00722.12
8.2.100.0060.00617.91
8.2.90.0040.00420.65
8.2.80.0000.00817.97
8.2.70.0080.00017.88
8.2.60.0060.00317.80
8.2.50.0030.00518.10
8.2.40.0040.00420.61
8.2.30.0080.00020.61
8.2.20.0050.00517.62
8.2.10.0040.00418.11
8.2.00.0070.00018.00
8.1.280.0130.00725.92
8.1.270.0030.00623.74
8.1.260.0030.00528.09
8.1.250.0070.00028.09
8.1.240.0060.00322.14
8.1.230.0070.00420.88
8.1.220.0000.00817.74
8.1.210.0000.00819.04
8.1.200.0030.00617.22
8.1.190.0000.00817.13
8.1.180.0040.00418.10
8.1.170.0050.00518.59
8.1.160.0050.00221.92
8.1.150.0000.00718.81
8.1.140.0090.00019.41
8.1.130.0050.00317.70
8.1.120.0000.00817.39
8.1.110.0000.00817.43
8.1.100.0080.00017.48
8.1.90.0000.00817.43
8.1.80.0000.00817.34
8.1.70.0030.00317.26
8.1.60.0040.00417.46
8.1.50.0030.00617.50
8.1.40.0050.00317.47
8.1.30.0030.00517.62
8.1.20.0020.00517.44
8.1.10.0040.00417.29
8.1.00.0090.00017.43
8.0.300.0090.00019.70
8.0.290.0000.00816.61
8.0.280.0030.00318.48
8.0.270.0040.00417.16
8.0.260.0000.00717.25
8.0.250.0030.00316.82
8.0.240.0030.00516.86
8.0.230.0080.00016.88
8.0.220.0070.00016.87
8.0.210.0070.00016.88
8.0.200.0030.00316.80
8.0.190.0040.00416.98
8.0.180.0020.00516.82
8.0.170.0050.00316.91
8.0.160.0000.00816.89
8.0.150.0040.00416.71
8.0.140.0000.00716.85
8.0.130.0060.00013.36
8.0.120.0040.00416.85
8.0.110.0040.00416.90
8.0.100.0000.00716.83
8.0.90.0000.00716.75
8.0.80.0000.01616.89
8.0.70.0060.00316.76
8.0.60.0080.00016.98
8.0.50.0000.00716.68
8.0.30.0070.00817.00
8.0.20.0110.00817.40
8.0.10.0070.00016.87
8.0.00.0110.00616.87
7.4.330.0020.00216.76
7.4.320.0000.00616.51
7.4.300.0000.00616.59
7.4.290.0060.00316.64
7.4.280.0040.00416.54
7.4.270.0060.00316.62
7.4.260.0080.00016.59
7.4.250.0040.00316.54
7.4.240.0020.00516.50
7.4.230.0040.00416.38
7.4.220.0030.02216.45
7.4.210.0080.00616.62
7.4.200.0000.00716.60
7.4.160.0060.00916.51
7.4.150.0140.00417.40
7.4.140.0080.01117.86
7.4.130.0100.00716.33
7.4.120.0110.00616.53
7.4.110.0030.01316.63
7.4.100.0040.01516.38
7.4.90.0070.01016.44
7.4.80.0030.01419.39
7.4.70.0110.00616.57
7.4.60.0040.01216.54
7.4.50.0030.01016.34
7.4.40.0070.01116.43
7.4.30.0120.00916.43
7.4.00.0070.00714.82
7.3.330.0000.00613.09
7.3.320.0030.00313.17
7.3.310.0000.00716.12
7.3.300.0000.00616.23
7.3.290.0070.00916.23
7.3.280.0090.00716.27
7.3.270.0100.00717.40
7.3.260.0070.01016.43
7.3.240.0070.01316.32
7.3.230.0080.01116.39
7.3.210.0100.00616.29
7.3.200.0100.00716.27
7.3.190.0080.01416.25
7.3.180.0070.01016.57
7.3.170.0120.00416.61
7.3.160.0060.01016.38
7.3.120.0040.01514.70
7.3.110.0040.01414.76
7.3.100.0060.00314.69
7.3.90.0060.00314.72
7.3.80.0070.00414.66
7.3.70.0030.00614.38
7.3.60.0060.00314.91
7.3.50.0030.00914.78
7.3.40.0030.00914.39
7.3.30.0040.00814.74
7.3.20.0000.01216.50
7.3.10.0060.00616.73
7.3.00.0060.00616.85
7.2.330.0200.00016.67
7.2.320.0110.00616.57
7.2.310.0100.00616.25
7.2.300.0030.01316.23
7.2.290.0060.01316.43
7.2.250.0070.00714.80
7.2.240.0120.00814.62
7.2.230.0070.01014.80
7.2.220.0030.01014.69
7.2.210.0000.01014.93
7.2.200.0070.00715.03
7.2.190.0040.00714.98
7.2.180.0050.00514.96
7.2.170.0090.00614.61
7.2.60.0080.00416.57
7.2.00.0040.01219.27
7.1.330.0060.00615.96
7.1.320.0070.00715.63
7.1.310.0000.01015.73
7.1.300.0070.00715.71
7.1.290.0070.00715.71
7.1.280.0070.00415.79
7.1.270.0060.00915.49
7.1.260.0080.00415.77
7.1.200.0030.00615.75
7.1.100.0030.00718.13
7.1.70.0060.00317.07
7.1.60.0100.01019.48
7.1.50.0060.01616.84
7.1.00.0030.07722.43
7.0.200.0030.00616.84
7.0.60.0100.08019.94
7.0.50.0100.07317.90
7.0.40.0030.08720.13
7.0.30.0200.05320.30
7.0.20.0200.04320.13
7.0.10.0100.05720.04
7.0.00.0130.04720.00
5.6.280.0000.07720.98
5.6.210.0070.07720.44
5.6.200.0100.07718.23
5.6.190.0070.05720.37
5.6.180.0200.05320.42
5.6.170.0200.08720.51
5.6.160.0070.06320.40
5.6.150.0130.03718.11
5.6.140.0070.08318.21
5.6.130.0070.08018.25
5.6.120.0130.04021.14
5.6.110.0170.07321.01
5.6.100.0170.07321.09
5.6.90.0030.06021.12
5.6.80.0100.07720.39
5.5.350.3870.04020.48
5.5.340.0000.04017.95
5.5.330.0130.04720.37
5.5.320.0000.06020.27
5.5.310.0270.07020.31
5.5.300.0070.05318.02
5.5.290.0130.06717.97
5.5.280.0000.09320.88
5.5.270.0100.07020.79
5.5.260.0100.08020.60
5.5.250.0230.06720.70
5.5.240.0330.06720.18

preferences:
54.55 ms | 401 KiB | 5 Q