3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "Original Code\n"; $count = 3; if ($count ?? 1 > 2) { echo "Yes!!\n"; } else { echo "No!!!!\n"; } if ($count ?? null === null) { echo "Noooo!!!\n"; } else { echo "Yes!!\n"; } if ($count ?? null >= 3) { echo "Yes!!\n"; } else { echo "No!!!!\n"; } if ($count ?? null == null) { echo "Noooo!!!\n"; } else { echo "Yes!!\n"; } $count = false; if ($count ?? true === true) { echo "Noooo!!!!\n"; } else { echo "Yes!!\n"; } $count = 3; if ($count ?? true === true) { echo "Noooo!!!!\n"; } else { echo "Yes!!\n"; } if ($count ?? true === true) { echo "Noooo!!!!\n"; } else { echo "Yes!!\n"; } echo "\nCorrect code\n"; $count = 3; if (($count ?? 1) > 2) { echo "Yes!!\n"; } else { echo "No!!!!\n"; } if (($count ?? null) === null) { echo "Noooo!!!\n"; } else { echo "Yes!!\n"; } if (($count ?? null) >= 3) { echo "Yes!!\n"; } else { echo "No!!!!\n"; } if (($count ?? null) == null) { echo "Noooo!!!\n"; } else { echo "Yes!!\n"; } $count = false; if (($count ?? true) === true) { echo "Noooo!!!!\n"; } else { echo "Yes!!\n"; } $count = 3; if (($count ?? true) === true) { echo "Noooo!!!!\n"; } else { echo "Yes!!\n"; } if (($count ?? true) === true) { echo "Noooo!!!!\n"; } else { echo "Yes!!\n"; }

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)
8.4.130.0080.00417.65
8.4.120.0100.01024.27
8.4.110.0120.00524.19
8.4.100.0130.00718.94
8.4.90.0100.01018.78
8.4.80.0150.00518.85
8.4.70.0110.00819.64
8.4.60.0130.00518.84
8.4.50.0170.00618.61
8.4.40.0080.00817.89
8.4.30.0160.00318.66
8.4.20.0080.01117.93
8.4.10.0130.00319.56
8.3.260.0160.00316.38
8.3.250.0100.00818.95
8.3.240.0120.00617.06
8.3.230.0130.00516.66
8.3.220.0090.01018.87
8.3.210.0110.00916.56
8.3.200.0040.00516.73
8.3.190.0100.01016.81
8.3.180.0120.00816.84
8.3.170.0030.01618.98
8.3.160.0110.00717.05
8.3.150.0060.01217.29
8.3.140.0100.00716.38
8.3.130.0040.00416.66
8.3.120.0090.00020.65
8.3.110.0030.00620.94
8.3.100.0050.00324.06
8.3.90.0090.00926.77
8.3.80.0050.00517.97
8.3.70.0150.00316.61
8.3.60.0090.00616.55
8.3.50.0090.01218.30
8.3.40.0090.00621.86
8.3.30.0130.00722.96
8.3.20.0150.00422.96
8.3.10.0110.00722.96
8.3.00.0150.00322.96
8.2.290.0100.00920.46
8.2.280.0120.00918.41
8.2.270.0120.00618.73
8.2.260.0060.00316.55
8.2.250.0040.00418.29
8.2.240.0040.01516.91
8.2.230.0030.00622.58
8.2.220.0150.00637.54
8.2.210.0080.00026.77
8.2.200.0100.00016.50
8.2.190.0120.00618.16
8.2.180.0130.00916.38
8.2.170.0170.00022.96
8.2.160.0070.01322.96
8.2.150.0150.00322.96
8.2.140.0000.01822.96
8.2.130.0130.00622.96
8.2.120.0140.00422.96
8.2.110.0090.00622.96
8.2.100.0180.00422.96
8.2.90.0140.00722.96
8.2.80.0180.00422.96
8.2.70.0130.01022.96
8.2.60.0100.00722.96
8.2.50.0060.01222.96
8.2.40.0100.01022.96
8.2.30.0130.00922.96
8.2.20.0140.00722.96
8.2.10.0130.00322.96
8.2.00.0150.00022.96
8.1.330.0120.00721.90
8.1.320.0040.00315.96
8.1.310.0110.00718.09
8.1.300.0030.01615.84
8.1.290.0060.00330.84
8.1.280.0100.01025.92
8.1.270.0100.01022.96
8.1.260.0070.00722.96
8.1.250.0100.01022.96
8.1.240.0110.00422.96
8.1.230.0140.00722.96
8.1.220.0140.00322.96
8.1.210.0120.00322.96
8.1.200.0000.01522.96
8.1.190.0110.00422.96
8.1.180.0060.00922.96
8.1.170.0000.01522.96
8.1.160.0160.00022.96
8.1.150.0080.00822.96
8.1.140.0000.01522.96
8.1.130.0030.01422.96
8.1.120.0080.01222.96
8.1.110.0090.00922.96
8.1.100.0140.00322.96
8.1.90.0070.01122.96
8.1.80.0130.01022.96
8.1.70.0170.00322.96
8.1.60.0060.00922.96
8.1.50.0060.01222.96
8.1.40.0130.00422.96
8.1.30.0070.00722.96
8.1.20.0140.00022.96
8.1.10.0150.00422.96
8.1.00.0090.00922.96

preferences:
53.55 ms | 403 KiB | 5 Q