3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach([0,1,false,true,'','_',null]as $a) var_dump(is_null($a),empty($a));

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)
8.3.60.0130.00916.25
8.3.50.0100.00317.86
8.3.40.0060.00918.77
8.3.30.0070.00718.46
8.3.20.0070.00721.66
8.3.10.0040.00421.60
8.3.00.0080.00820.83
8.2.180.0140.00318.02
8.2.170.0060.00922.96
8.2.160.0100.00322.96
8.2.150.0070.00024.18
8.2.140.0030.00624.66
8.2.130.0040.00421.11
8.2.120.0080.00026.35
8.2.110.0030.00621.00
8.2.100.0110.00017.72
8.2.90.0000.00817.78
8.2.80.0040.00417.97
8.2.70.0040.00417.91
8.2.60.0070.00017.90
8.2.50.0040.00418.10
8.2.40.0040.00420.34
8.2.30.0040.00419.16
8.2.20.0040.00417.93
8.2.10.0030.00517.78
8.2.00.0040.00418.00
8.1.280.0090.00625.92
8.1.270.0000.00723.92
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00322.21
8.1.230.0070.00421.03
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0050.00317.23
8.1.190.0090.00016.98
8.1.180.0070.00418.10
8.1.170.0030.00618.52
8.1.160.0000.00818.75
8.1.150.0050.00218.86
8.1.140.0070.00017.57
8.1.130.0070.00018.98
8.1.120.0080.00017.22
8.1.110.0030.00317.21
8.1.100.0050.00317.31
8.1.90.0080.00017.29
8.1.80.0040.00417.35
8.1.70.0000.00817.21
8.1.60.0090.00017.48
8.1.50.0040.00417.37
8.1.40.0040.00417.41
8.1.30.0030.00617.49
8.1.20.0000.00917.53
8.1.10.0040.00417.35
8.1.00.0090.00017.38
8.0.300.0040.00420.04
8.0.290.0080.00016.63
8.0.280.0030.00318.30
8.0.270.0030.00717.18
8.0.260.0060.00017.11
8.0.250.0030.00516.87
8.0.240.0000.00716.92
8.0.230.0050.00316.72
8.0.220.0000.00916.73
8.0.210.0040.00416.81
8.0.200.0000.00716.88
8.0.190.0040.00416.91
8.0.180.0040.00416.77
8.0.170.0030.00616.78
8.0.160.0000.00716.71
8.0.150.0030.00516.80
8.0.140.0100.00016.82
8.0.130.0070.00013.23
8.0.120.0000.00816.78
8.0.110.0000.00716.88
8.0.100.0000.00716.74
8.0.90.0030.00516.68
8.0.80.0110.00316.80
8.0.70.0030.00516.68
8.0.60.0080.00016.84
8.0.50.0050.00216.71
8.0.30.0090.00916.97
8.0.20.0100.00917.40
8.0.10.0040.00416.84
8.0.00.0130.00516.67
7.4.330.0050.00016.66
7.4.320.0000.00616.46
7.4.300.0030.00316.28
7.4.290.0070.00016.34
7.4.280.0070.00316.50
7.4.270.0050.00516.31
7.4.260.0070.00416.30
7.4.250.0070.00016.38
7.4.240.0030.00316.44
7.4.230.0000.00716.18
7.4.220.0000.00816.48
7.4.210.0090.00716.36
7.4.200.0000.00716.53
7.4.160.0070.01216.35
7.4.140.0090.00917.86
7.4.130.0100.01016.59
7.4.120.0100.00716.40
7.4.110.0100.00716.48
7.4.100.0060.01216.52
7.4.90.0090.01516.33
7.4.80.0040.01619.39
7.4.70.0180.00416.14
7.4.60.0120.00616.32
7.4.50.0070.01116.21
7.4.40.0030.01316.38
7.4.00.0070.00914.55
7.3.330.0060.00013.18
7.3.320.0000.00713.13
7.3.310.0040.00416.12
7.3.300.0030.00316.25
7.3.290.0050.00316.30
7.3.280.0060.00916.26
7.3.260.0100.01016.29
7.3.240.0100.00916.44
7.3.230.0130.01116.25
7.3.210.0170.00016.52
7.3.200.0130.00816.30
7.3.190.0080.01516.26
7.3.180.0060.01716.48
7.3.170.0090.01216.35
7.3.160.0120.00416.34
7.3.120.0100.01014.53
7.3.110.0060.01214.56
7.3.100.0040.01114.79
7.3.90.0040.01514.66
7.3.80.0100.00714.51
7.3.70.0080.00814.64
7.3.60.0130.00314.71
7.3.50.0150.00014.59
7.3.40.0030.00714.63
7.3.30.0070.00314.73
7.3.20.0110.00416.29
7.3.10.0050.00816.55
7.3.00.0060.00416.65
7.2.330.0090.00916.56
7.2.320.0120.00616.47
7.2.310.0160.00316.60
7.2.300.0210.00416.69
7.2.290.0140.00716.68
7.2.250.0030.01415.23
7.2.240.0070.01015.15
7.2.230.0090.00914.84
7.2.220.0040.01514.97
7.2.210.0090.00615.04
7.2.200.0040.00814.94
7.2.190.0060.00915.00
7.2.180.0060.00814.89
7.2.170.0100.00314.79
7.2.130.0040.00416.96
7.2.120.0040.00716.77
7.2.110.0060.00316.93
7.2.100.0060.00316.75
7.2.90.0030.01216.73
7.2.80.0020.01116.87
7.2.70.0000.01016.57
7.2.60.0060.00517.02
7.2.50.0000.01017.07
7.2.40.0720.01217.48
7.2.30.0830.00917.44
7.2.20.0750.00817.32
7.2.10.0680.00917.24
7.2.00.1070.00817.45
7.1.330.0070.00715.73
7.1.320.0140.00015.59
7.1.310.0000.01615.65
7.1.300.0040.00815.74
7.1.290.0040.00815.71
7.1.280.0040.01415.40
7.1.270.0080.00815.75
7.1.260.0160.00015.33
7.1.250.0060.00315.73
7.1.200.0160.00415.69
7.1.160.1400.00516.80
7.1.150.1290.01016.93
7.1.140.1470.01216.80
7.1.130.2360.01016.99
7.1.120.1220.01016.80
7.1.110.1100.00816.17
7.1.100.1240.01116.30
7.1.90.1270.01016.21
7.1.80.1530.01316.05
7.1.70.0080.01415.15
7.1.60.0780.01433.00
7.1.50.0540.01332.96
7.1.40.0230.01432.40
7.1.30.1860.01232.64
7.1.20.0880.01332.63
7.1.10.1650.01214.71
7.1.00.2620.00914.77

preferences:
61.55 ms | 401 KiB | 5 Q