3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "0"; $c = $b = empty($a); $d = ++$b + $a; #echo $d; echo $b;

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)
8.3.60.0090.00618.31
8.3.50.0100.00716.26
8.3.40.0110.00718.79
8.3.30.0030.01018.54
8.3.20.0050.00221.68
8.3.10.0000.00723.48
8.3.00.0000.00823.65
8.2.180.0040.01218.40
8.2.170.0080.00622.96
8.2.160.0100.00320.30
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0030.00522.27
8.2.120.0070.00026.35
8.2.110.0060.00322.24
8.2.100.0040.00717.72
8.2.90.0030.00619.82
8.2.80.0070.00018.20
8.2.70.0080.00017.92
8.2.60.0000.00817.63
8.2.50.0060.00318.10
8.2.40.0050.00220.45
8.2.30.0030.00320.61
8.2.20.0040.00417.96
8.2.10.0000.00717.98
8.2.00.0000.00718.11
8.1.280.0040.01125.92
8.1.270.0000.00822.14
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0030.00622.66
8.1.230.0120.00020.97
8.1.220.0080.00017.79
8.1.210.0040.00418.77
8.1.200.0080.00017.23
8.1.190.0000.00816.98
8.1.180.0000.00818.10
8.1.170.0040.00418.53
8.1.160.0000.00718.70
8.1.150.0060.00320.18
8.1.140.0000.00717.48
8.1.130.0070.00019.05
8.1.120.0000.00817.38
8.1.110.0090.00017.36
8.1.100.0040.00417.24
8.1.90.0030.00517.38
8.1.80.0040.00417.39
8.1.70.0000.00717.44
8.1.60.0000.00817.40
8.1.50.0080.00017.43
8.1.40.0000.00917.33
8.1.30.0040.00417.49
8.1.20.0090.00317.43
8.1.10.0050.00217.50
8.1.00.0060.00317.34
8.0.300.0000.00719.95
8.0.290.0000.00816.88
8.0.280.0000.00718.47
8.0.270.0070.00017.19
8.0.260.0030.00316.91
8.0.250.0000.00716.98
8.0.240.0030.00316.88
8.0.230.0000.00716.92
8.0.220.0030.00316.74
8.0.210.0040.00416.85
8.0.200.0060.00016.82
8.0.190.0040.00416.89
8.0.180.0000.00716.84
8.0.170.0090.00016.93
8.0.160.0070.00016.77
8.0.150.0000.00716.80
8.0.140.0050.00316.85
8.0.130.0050.00013.23
8.0.120.0050.00216.81
8.0.110.0000.00716.70
8.0.100.0000.00716.90
8.0.90.0050.00316.71
8.0.80.0120.00316.86
8.0.70.0000.00716.88
8.0.60.0030.00516.89
8.0.50.0070.00016.75
8.0.30.0130.00917.03
8.0.20.0140.00417.40
8.0.10.0040.00416.78
8.0.00.0060.01216.77
7.4.330.0000.00515.55
7.4.320.0000.00716.57
7.4.300.0060.00016.42
7.4.290.0030.00316.35
7.4.280.0030.00616.43
7.4.270.0030.00316.41
7.4.260.0030.00316.36
7.4.250.0030.00316.29
7.4.240.0000.00816.28
7.4.230.0040.00416.41
7.4.220.0050.00216.43
7.4.210.0120.00416.58
7.4.200.0080.00016.40
7.4.160.0070.01116.45
7.4.140.0120.00817.86
7.4.130.0210.00416.48
7.4.120.0110.00716.43
7.4.110.0100.00616.50
7.4.100.0040.01216.38
7.4.90.0150.00316.66
7.4.80.0070.00619.39
7.4.70.0100.00716.52
7.4.60.0100.00616.41
7.4.50.0070.01116.51
7.4.40.0060.00916.35
7.4.00.0030.01415.03
7.3.330.0030.00313.10
7.3.320.0060.00012.99
7.3.310.0060.00016.09
7.3.300.0000.00616.24
7.3.290.0030.01016.20
7.3.280.0070.00916.24
7.3.260.0150.00916.35
7.3.250.0090.01216.50
7.3.240.0100.01116.48
7.3.230.0120.00416.41
7.3.210.0090.00916.57
7.3.200.0030.01616.42
7.3.190.0080.00816.19
7.3.180.0000.01616.24
7.3.170.0110.00716.58
7.3.160.0120.00316.36
7.3.10.0090.00616.68
7.3.00.0090.00616.60
7.2.330.0100.00716.77
7.2.320.0000.02016.50
7.2.310.0080.01116.79
7.2.300.0070.01516.71
7.2.290.0100.00716.68
7.2.130.0090.00316.84
7.2.120.0100.00316.88
7.2.110.0040.00716.86
7.2.100.0040.01216.79
7.2.90.0030.00716.92
7.2.80.0030.00717.04
7.2.70.0000.01516.68
7.2.60.0090.00916.79
7.2.50.0070.01116.77
7.2.40.0000.01816.73
7.2.30.0120.01017.52
7.2.20.0130.00917.32
7.2.10.0110.01217.44
7.2.00.0130.01117.43
7.1.250.0030.00715.68
7.1.200.0120.00315.69
7.1.150.0180.01516.29
7.1.140.0180.01116.84
7.1.130.0130.01616.44
7.1.120.0210.00816.63
7.1.110.0160.01316.25
7.1.100.0140.01716.10
7.1.90.0110.01416.11
7.1.80.0290.01316.28
7.1.70.0840.01015.09
7.1.60.0390.01433.24
7.1.50.0380.01732.94
7.1.40.0350.01732.53
7.1.30.0340.01432.41
7.1.20.0430.01432.80
7.1.10.0120.00914.58
7.1.00.0210.00914.80

preferences:
88.16 ms | 401 KiB | 5 Q