3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (empty($a)) { echo 'foo'; } else { echo 'bar'; } empty($a['aaaa']); empty($b['aaaaa']); isset($dsadasdasd); isset($dsadasd['aaaaa']);

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)
8.3.40.0060.00918.55
8.3.30.0070.00718.85
8.3.20.0140.00018.99
8.3.10.0050.00321.95
8.3.00.0050.00319.68
8.2.170.0060.01122.96
8.2.160.0080.00622.18
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00019.19
8.2.120.0050.00326.35
8.2.110.0030.00719.30
8.2.100.0110.00417.80
8.2.90.0040.00419.08
8.2.80.0080.00017.97
8.2.70.0060.00317.50
8.2.60.0080.00018.04
8.2.50.0080.00018.10
8.2.40.0000.00820.61
8.2.30.0050.00319.12
8.2.20.0020.00518.02
8.2.10.0000.00717.88
8.2.00.0050.00317.61
8.1.270.0060.00323.91
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0050.00521.06
8.1.230.0090.00319.09
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0000.00917.22
8.1.190.0030.00617.23
8.1.180.0000.00818.10
8.1.170.0040.00418.52
8.1.160.0000.00722.05
8.1.150.0050.00320.53
8.1.140.0090.00019.51
8.1.130.0030.00317.29
8.1.120.0030.00317.38
8.1.110.0040.00417.28
8.1.100.0040.00417.22
8.1.90.0030.00517.31
8.1.80.0040.00417.35
8.1.70.0000.00617.25
8.1.60.0040.00417.46
8.1.50.0040.00417.39
8.1.40.0000.00817.39
8.1.30.0040.00417.43
8.1.20.0000.00717.42
8.1.10.0040.00417.43
8.1.00.0040.00417.29
8.0.300.0040.00418.77
8.0.290.0000.00716.58
8.0.280.0000.00718.29
8.0.270.0030.00317.23
8.0.260.0030.00316.79
8.0.250.0070.00016.79
8.0.240.0000.00616.75
8.0.230.0030.00316.80
8.0.220.0070.00316.63
8.0.210.0000.00716.66
8.0.200.0030.00316.82
8.0.190.0000.00816.75
8.0.180.0070.00016.77
8.0.170.0000.00816.68
8.0.160.0040.00416.65
8.0.150.0070.00016.66
8.0.140.0000.00716.61
8.0.130.0000.00513.18
8.0.120.0000.00716.75
8.0.110.0040.00416.75
8.0.100.0040.00416.82
8.0.90.0000.00816.78
8.0.80.0160.00516.75
8.0.70.0030.00416.81
8.0.60.0000.00716.60
8.0.50.0000.00716.70
8.0.30.0070.01216.94
8.0.20.0090.01217.40
8.0.10.0000.00716.96
8.0.00.0120.01116.71
7.4.330.0030.00315.55
7.4.320.0030.00316.55
7.4.300.0060.00016.42
7.4.290.0000.00616.36
7.4.280.0060.00316.45
7.4.270.0030.00316.47
7.4.260.0000.00716.40
7.4.250.0000.00716.28
7.4.240.0070.00016.46
7.4.230.0040.00416.46
7.4.220.0110.00816.20
7.4.210.0030.01116.48
7.4.200.0000.00816.22
7.4.160.0080.00816.46
7.4.150.0120.00617.40
7.4.140.0070.01017.86
7.4.130.0070.01216.39
7.4.120.0090.00816.44
7.4.110.0120.00616.36
7.4.100.0060.01216.46
7.4.90.0100.00716.45
7.4.80.0140.00319.39
7.4.70.0110.00716.35
7.4.60.0060.01016.51
7.4.50.0140.00316.58
7.4.40.0120.00616.38
7.4.30.0100.00616.38
7.4.00.0060.00914.65
7.3.330.0070.00013.01
7.3.320.0000.00513.12
7.3.310.0000.00716.01
7.3.300.0030.00316.30
7.3.290.0030.00316.01
7.3.280.0100.00816.20
7.3.270.0180.00017.40
7.3.260.0100.00816.50
7.3.250.0080.01316.25
7.3.240.0080.01116.38
7.3.230.0120.00516.39
7.3.210.0120.00416.45
7.3.200.0140.00316.41
7.3.190.0030.01316.16
7.3.180.0030.01316.27
7.3.170.0100.00816.22
7.3.160.0090.00816.34
7.2.330.0100.00616.32
7.2.320.0110.00616.20
7.2.310.0100.00716.18
7.2.300.0070.01016.66
7.2.290.0100.00616.46
7.2.120.0130.00616.57
7.2.110.0040.00416.64
7.2.100.0100.00516.27
7.2.90.0080.01116.47
7.2.80.0100.00816.68
7.2.70.0080.00816.83
7.2.60.0180.00316.96
7.2.50.0120.00416.87
7.2.40.0190.00016.94
7.2.30.0140.00716.81
7.2.20.0100.00616.70
7.2.10.0170.00216.78
7.2.00.0030.01316.86
7.1.240.0070.00715.80
7.1.230.0120.00615.55
7.1.220.0090.01215.50
7.1.210.0040.01315.56
7.1.200.0130.00315.41
7.1.190.0130.00415.77
7.1.180.0110.00415.56
7.1.170.0100.00715.57
7.1.160.0100.00715.50
7.1.150.0110.00315.54
7.1.140.0110.00915.59
7.1.130.0100.00315.54
7.1.120.0090.00915.63
7.1.110.0100.01015.55
7.1.100.0050.00815.64
7.1.90.0130.00315.62
7.1.80.0080.00815.71
7.1.70.0080.00616.35
7.1.60.0090.00416.32
7.1.50.0120.00615.58
7.1.40.0070.00315.46
7.1.30.0090.00615.56
7.1.20.0120.00415.77
7.1.10.0100.00315.64
7.1.00.0090.03119.20
7.0.320.0090.00615.31
7.0.310.0070.00714.93
7.0.300.0130.00015.30
7.0.290.0080.00815.19
7.0.280.0040.01315.12
7.0.270.0070.01014.98
7.0.260.0140.00015.23
7.0.250.0080.01115.12
7.0.240.0160.00615.20
7.0.230.0170.00015.24
7.0.220.0130.00415.37
7.0.210.0110.00415.35
7.0.200.0210.00614.87
7.0.190.0110.00315.38
7.0.180.0180.00015.26
7.0.170.0080.00515.34
7.0.160.0070.01015.32
7.0.150.0060.00915.42
7.0.140.0120.02818.75
7.0.130.0110.03018.61
7.0.120.0060.03418.69
7.0.110.0070.03318.56
7.0.100.0090.03118.68
7.0.90.0160.03018.66
7.0.80.0090.02918.78
7.0.70.0110.02718.57
7.0.60.0130.03718.77
7.0.50.0100.03218.67
7.0.40.0170.02717.51
7.0.30.0120.02817.70
7.0.20.0100.03117.69
7.0.10.0070.03317.77
7.0.00.0090.03317.67
5.6.380.0040.01414.48
5.6.370.0140.00014.10
5.6.360.0160.00014.35
5.6.350.0100.00614.67
5.6.340.0110.00614.46
5.6.330.0070.00714.30
5.6.320.0120.00413.89
5.6.310.0000.01314.27
5.6.300.0100.00514.09
5.6.290.0090.03017.63
5.6.280.0140.02717.58
5.6.270.0120.02817.65
5.6.260.0100.03017.73
5.6.250.0180.03017.62
5.6.240.0120.03117.59
5.6.230.0130.02717.76
5.6.220.0110.02917.63
5.6.210.0100.03117.51
5.6.200.0120.03917.56
5.6.190.0170.03717.54
5.6.180.0190.02217.45
5.6.170.0080.04017.65
5.6.160.0120.04017.57
5.6.150.0100.04317.52
5.6.140.0070.04017.66
5.6.130.0140.03217.58
5.6.120.0050.03617.77
5.6.110.0100.04217.67
5.6.100.0050.04717.79
5.6.90.0120.02817.62
5.6.80.0100.02817.43
5.6.70.0100.03217.29
5.6.60.0100.02717.30
5.6.50.0120.02717.38
5.6.40.0100.03017.10
5.6.30.0080.03117.17
5.6.20.0090.03017.17
5.6.10.0120.02517.30
5.6.00.0090.03117.24

preferences:
69.65 ms | 400 KiB | 5 Q