3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = ''; print "isset: '" . isset($s) . "'. "; //print "!empty: '" . !empty($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)
8.3.60.0070.01416.50
8.3.50.0140.00719.92
8.3.40.0090.00618.54
8.3.30.0090.00618.69
8.3.20.0040.00418.52
8.3.10.0000.00921.78
8.3.00.0000.00820.77
8.2.180.0110.00416.63
8.2.170.0100.01022.96
8.2.160.0100.00720.46
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0040.00420.92
8.2.120.0040.00426.35
8.2.110.0030.00621.03
8.2.100.0060.00617.72
8.2.90.0040.00417.79
8.2.80.0030.00619.82
8.2.70.0080.00018.04
8.2.60.0050.00317.80
8.2.50.0000.01118.10
8.2.40.0000.00820.59
8.2.30.0040.00419.29
8.2.20.0030.00718.07
8.2.10.0000.00718.03
8.2.00.0000.00717.66
8.1.280.0090.00625.92
8.1.270.0050.00323.91
8.1.260.0030.00628.09
8.1.250.0040.00428.09
8.1.240.0110.00021.77
8.1.230.0130.00021.03
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0040.00417.35
8.1.190.0000.00817.10
8.1.180.0090.00018.10
8.1.170.0000.00818.50
8.1.160.0000.00718.80
8.1.150.0000.00720.24
8.1.140.0000.00719.55
8.1.130.0000.00717.69
8.1.120.0030.00317.35
8.1.110.0050.00317.48
8.1.100.0050.00317.49
8.1.90.0060.00317.50
8.1.80.0040.00417.43
8.1.70.0000.00717.45
8.1.60.0040.00417.55
8.1.50.0030.00617.43
8.1.40.0000.00717.38
8.1.30.0030.00517.65
8.1.20.0050.00317.58
8.1.10.0000.00717.46
8.1.00.0000.00717.29
8.0.300.0030.00519.83
8.0.290.0070.00016.63
8.0.280.0030.00318.42
8.0.270.0040.00417.24
8.0.260.0070.00017.16
8.0.250.0030.00316.98
8.0.240.0030.00316.89
8.0.230.0070.00016.93
8.0.220.0030.00316.82
8.0.210.0000.00716.78
8.0.200.0060.00017.00
8.0.190.0040.00416.97
8.0.180.0000.00816.94
8.0.170.0040.00416.89
8.0.160.0040.00416.92
8.0.150.0030.00316.84
8.0.140.0080.00016.89
8.0.130.0000.00613.33
8.0.120.0030.00516.88
8.0.110.0000.00716.69
8.0.100.0040.00416.75
8.0.90.0070.00016.92
8.0.80.0060.00916.84
8.0.70.0040.00416.77
8.0.60.0030.00316.64
8.0.50.0000.00716.75
8.0.30.0070.01217.10
8.0.20.0130.00817.40
8.0.10.0040.00416.81
8.0.00.0130.00316.60
7.4.330.0030.00315.55
7.4.320.0000.00616.50
7.4.300.0000.00616.39
7.4.290.0000.01016.44
7.4.280.0050.00316.42
7.4.270.0000.00716.42
7.4.260.0030.00316.44
7.4.250.0030.00316.29
7.4.240.0030.00416.52
7.4.230.0000.00716.60
7.4.220.0090.00916.53
7.4.210.0150.00016.48
7.4.200.0030.00516.31
7.4.160.0100.00716.46
7.4.150.0120.00617.40
7.4.140.0120.00517.86
7.4.130.0120.00716.32
7.4.120.0070.01016.37
7.4.110.0100.00716.22
7.4.100.0140.01016.23
7.4.90.0130.00316.45
7.4.80.0100.00719.39
7.4.70.0110.00516.40
7.4.60.0100.00716.30
7.4.50.0120.00316.57
7.4.40.0120.00416.30
7.4.30.0050.01116.44
7.4.00.0080.00614.96
7.3.330.0000.00612.93
7.3.320.0050.00012.95
7.3.310.0070.00016.23
7.3.300.0000.00716.21
7.3.290.0070.00816.16
7.3.280.0070.01116.20
7.3.270.0070.01017.40
7.3.260.0090.01116.59
7.3.250.0060.01216.30
7.3.240.0070.01016.17
7.3.230.0130.00316.57
7.3.210.0060.00916.20
7.3.200.0100.00716.16
7.3.190.0150.00816.38
7.3.180.0040.01216.26
7.3.170.0060.01016.28
7.3.160.0030.01316.57
7.2.330.0080.01116.71
7.2.320.0030.01516.29
7.2.310.0130.00416.64
7.2.300.0130.01016.28
7.2.290.0030.01316.65
7.2.60.0150.00016.91
7.2.50.0040.00416.57
7.2.40.0310.01117.81
7.2.30.0260.01117.78
7.2.20.0270.01017.93
7.2.10.0640.01017.95
7.2.00.0260.01018.23
7.1.200.0060.00615.44
7.1.160.0280.01016.76
7.1.150.0290.00916.83
7.1.140.0300.01116.58
7.1.130.0250.00916.60
7.1.120.0280.00816.72
7.1.110.0270.01116.17
7.1.100.0490.01216.25
7.1.90.0220.00916.10
7.1.80.0220.00816.03
7.1.70.1200.00815.09
7.1.60.0360.01033.12
7.1.50.0920.01632.80
7.1.40.1550.01632.47
7.1.30.1300.01632.57
7.1.20.1560.01532.72
7.1.10.1580.00914.55
7.1.00.0860.01014.65
7.0.290.0340.01316.16
7.0.270.0300.01116.39
7.0.260.0330.01216.37
7.0.250.0340.01115.90
7.0.240.0350.01015.58
7.0.230.0970.01015.83
7.0.220.0450.00915.74
7.0.210.0300.00914.67
7.0.200.1160.01014.84
7.0.190.0920.01114.88
7.0.180.1140.01114.34
7.0.170.1200.01114.40
7.0.160.1260.01314.38
7.0.150.1530.00614.37
7.0.140.1380.01014.54
7.0.130.1200.01014.63
7.0.120.0850.01014.61
7.0.110.0790.01414.35
7.0.100.0900.01214.48
7.0.90.0850.01214.37
7.0.80.0840.01014.54
7.0.70.0930.01114.31
7.0.60.0880.01214.21
7.0.50.0880.01114.43
7.0.40.0410.01014.62
7.0.30.0320.01114.65
7.0.20.0950.01314.59
7.0.10.0220.01014.52
7.0.00.0200.00914.58
5.6.300.0130.05920.80
5.6.290.0170.06520.83
5.6.280.0170.07920.81
5.6.270.0170.06320.92
5.6.260.0160.06820.95
5.6.250.0200.06520.91
5.6.240.0190.06920.87
5.6.230.0160.06120.79
5.6.220.0130.07020.84
5.6.210.0180.06920.73
5.6.200.0170.06320.74
5.6.190.0190.05820.73
5.6.180.0160.07020.85
5.6.170.0260.05720.80
5.6.160.0170.05920.79
5.6.150.0180.06720.79
5.6.140.0180.06320.82
5.6.130.0160.05820.82
5.6.120.0200.06120.86
5.6.110.0150.07020.82
5.6.100.0170.07220.78
5.6.90.0170.06320.76
5.6.80.0110.05920.14
5.6.70.0160.05620.21
5.6.60.0200.05420.15
5.6.50.0180.05320.11
5.6.40.0170.05420.21
5.6.30.0180.05720.13
5.6.20.0170.06120.08
5.6.10.0180.05820.18
5.6.00.0120.05920.09

preferences:
58.19 ms | 401 KiB | 5 Q