3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = null; if (! isset($var) || $var) { echo "not empty or not defiend or a null value"; } else { echo "empty"; } echo "instead\n"; if (! empty($var)) { echo "not empty or not defiend or a null value"; } else { echo "empty"; }

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)
8.3.70.0040.01116.38
8.3.60.0040.01518.43
8.3.50.0230.00622.04
8.3.40.0060.01218.42
8.3.30.0090.00618.77
8.3.20.0000.01020.35
8.3.10.0040.00423.57
8.3.00.0000.00720.56
8.2.180.0060.01016.50
8.2.170.0090.00622.96
8.2.160.0110.00422.27
8.2.150.0080.00024.18
8.2.140.0080.00824.66
8.2.130.0080.00026.16
8.2.120.0040.00417.75
8.2.110.0070.00322.09
8.2.100.0110.00017.84
8.2.90.0040.00417.73
8.2.80.0000.00817.97
8.2.70.0040.00418.04
8.2.60.0030.00618.03
8.2.50.0090.00018.10
8.2.40.0040.00418.16
8.2.30.0040.00417.94
8.2.20.0040.00417.57
8.2.10.0050.00319.39
8.2.00.0000.00717.73
8.1.280.0130.00725.92
8.1.270.0080.00021.86
8.1.260.0040.00426.35
8.1.250.0150.00028.09
8.1.240.0040.00423.97
8.1.230.0070.00320.85
8.1.220.0000.00717.75
8.1.210.0040.00418.77
8.1.200.0060.00317.22
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0060.00318.67
8.1.160.0000.00822.01
8.1.150.0000.00918.60
8.1.140.0040.00417.51
8.1.130.0000.00717.82
8.1.120.0070.00017.36
8.1.110.0040.00417.47
8.1.100.0040.00417.46
8.1.90.0000.00717.48
8.1.80.0000.00717.50
8.1.70.0070.00017.43
8.1.60.0040.00417.45
8.1.50.0040.00417.53
8.1.40.0030.00517.48
8.1.30.0060.00317.60
8.1.20.0000.00717.68
8.1.10.0030.00617.55
8.1.00.0040.00417.31
8.0.300.0040.00421.68
8.0.290.0030.00816.58
8.0.280.0000.00718.35
8.0.270.0000.00717.16
8.0.260.0060.00316.82
8.0.250.0000.00617.02
8.0.240.0040.00417.00
8.0.230.0070.00016.84
8.0.220.0030.00316.78
8.0.210.0030.00316.87
8.0.200.0030.00616.98
8.0.190.0050.00216.89
8.0.180.0040.00716.95
8.0.170.0040.00416.90
8.0.160.0000.00716.96
8.0.150.0080.00016.82
8.0.140.0000.00716.86
8.0.130.0050.00013.37
8.0.120.0000.00716.75
8.0.110.0030.00516.72
8.0.100.0030.00516.93
8.0.90.0030.00517.00
8.0.80.0030.01316.83
8.0.70.0040.00416.84
8.0.60.0000.00716.93
8.0.50.0040.00416.91
8.0.30.0110.00817.06
8.0.20.0150.00617.40
8.0.10.0000.00816.84
8.0.00.0110.01016.72
7.4.330.0050.00015.10
7.4.320.0000.00616.64
7.4.300.0030.00316.62
7.4.290.0000.00816.42
7.4.280.0000.00716.51
7.4.270.0030.00616.65
7.4.260.0030.00316.59
7.4.250.0040.00416.52
7.4.240.0040.00316.48
7.4.230.0030.00316.61
7.4.220.0070.01016.70
7.4.210.0110.00316.61
7.4.200.0020.00516.44
7.4.190.0000.00716.74
7.4.160.0130.01016.42
7.4.150.0060.01217.40
7.4.140.0090.00817.86
7.4.130.0120.00516.44
7.4.120.0110.00716.49
7.4.110.0030.01316.39
7.4.100.0070.01016.42
7.4.90.0110.01216.54
7.4.80.0070.01016.51
7.4.70.0100.00716.46
7.4.60.0040.01116.54
7.4.50.0080.00016.45
7.4.40.0110.00722.77
7.4.30.0090.00616.34
7.4.00.0070.01014.98
7.3.330.0020.00212.93
7.3.320.0000.00613.09
7.3.310.0070.00016.29
7.3.300.0040.00416.00
7.3.290.0080.00616.13
7.3.280.0100.00616.19
7.3.270.0110.01117.40
7.3.260.0140.00416.38
7.3.250.0050.01316.37
7.3.240.0100.00716.31
7.3.230.0030.01216.39
7.3.210.0140.00416.46
7.3.200.0120.00619.39
7.3.190.0080.00816.49
7.3.180.0080.00816.05
7.3.170.0120.00316.37
7.3.160.0140.00816.60
7.3.120.0060.00614.86
7.2.330.0080.00816.29
7.2.320.0030.01416.41
7.2.310.0040.01216.39
7.2.300.0120.00316.26
7.2.290.0070.01016.59
7.2.110.0130.00316.54
7.2.60.0040.01116.82
7.2.00.0000.01318.70
7.1.200.0030.00915.34
7.1.100.0150.01517.93
7.1.70.0070.00017.07
7.1.60.0060.01919.32
7.1.50.0130.01016.57
7.1.00.0100.06722.37
7.0.200.0070.00016.45
7.0.140.0100.06722.12
7.0.60.0030.04020.00
7.0.50.0070.05317.91
7.0.40.0100.06320.23
7.0.30.0070.05020.02
7.0.20.0200.05720.00
7.0.10.0230.04020.09
7.0.00.0100.07720.12
5.6.280.0100.06720.89
5.6.210.0070.04720.60
5.6.200.0030.09018.12
5.6.190.0100.06020.67
5.6.180.0330.04020.32
5.6.170.0300.08020.48
5.6.160.0070.08020.61
5.6.150.0000.04318.11
5.6.140.0070.05718.20
5.6.130.0230.03718.18
5.6.120.0030.07321.14
5.6.110.0070.04021.13
5.6.100.0030.04321.00
5.6.90.0200.06720.97
5.6.80.0030.04020.38
5.6.70.0270.07020.38
5.5.350.0300.06720.34
5.5.340.0030.07017.91
5.5.330.0200.07020.23
5.5.320.0230.05320.37
5.5.310.0300.06720.23
5.5.300.0070.05018.01
5.5.290.0130.07017.97
5.5.280.0030.08320.64
5.5.270.0100.06020.78
5.5.260.0070.07720.83
5.5.250.0130.07720.60
5.5.240.0070.08020.27
5.4.450.5030.04319.36
5.4.440.0100.07319.49
5.4.430.1530.05019.36
5.4.420.3870.04319.46
5.4.410.4170.05019.06
5.4.400.0130.07019.18
5.4.390.4070.04319.00
5.4.380.4330.04318.93
5.4.370.3000.04019.17
5.4.360.3270.04019.04
5.4.350.4230.04319.04
5.4.340.4070.04019.17
5.4.320.3370.03318.87
5.4.310.1970.04019.07
5.4.300.1730.03718.96
5.4.290.2030.03719.18
5.4.280.2630.04018.97
5.4.270.3130.03019.25
5.4.260.1870.03719.17
5.4.250.2600.02719.03
5.4.240.2770.02719.17
5.4.230.3270.04018.96
5.4.220.3670.04019.03
5.4.210.3930.04019.20
5.4.200.3930.03318.96
5.4.190.4100.03719.09
5.4.180.3670.03719.25
5.4.170.4070.04319.15
5.4.160.3830.03319.14
5.4.150.3600.03319.14
5.4.140.4130.03716.13
5.4.130.4070.04016.43
5.4.120.4170.04016.43
5.4.110.3800.03316.40
5.4.100.3770.04016.35
5.4.90.4100.02716.22
5.4.80.2770.03716.21
5.4.70.3870.03316.35
5.4.60.4300.03716.33
5.4.50.4030.04716.23
5.4.40.4500.03316.34
5.4.30.4170.03716.46
5.4.20.3930.04016.13
5.4.10.3830.03016.10
5.4.00.3630.03715.57
5.3.290.1300.05314.62
5.3.280.2070.03014.41
5.3.270.3400.05314.57
5.3.260.3830.03714.53
5.3.250.3770.03714.52
5.3.240.4500.03714.52
5.3.230.4000.04314.52
5.3.220.4730.02714.49
5.3.210.4200.03314.54
5.3.200.4070.03314.49
5.3.190.4030.03314.50
5.3.180.3900.02014.48
5.3.170.4070.03014.49
5.3.160.4570.03014.48
5.3.150.4400.03714.48
5.3.140.4530.04014.57
5.3.130.4470.04014.33
5.3.120.4130.03714.44
5.3.110.3630.04014.48
5.3.100.3770.03313.93
5.3.90.4070.03713.95
5.3.80.3900.03313.95
5.3.70.4070.03313.80
5.3.60.3970.03713.82
5.3.50.3830.04013.96
5.3.40.3700.03713.73
5.3.30.3870.04013.83
5.3.20.3830.03013.53
5.3.10.3970.03713.58
5.3.00.4430.04013.57
5.2.170.3370.03011.11
5.2.160.3170.03011.05
5.2.150.2600.02711.00
5.2.140.2970.02311.02
5.2.130.3400.02310.92
5.2.120.3370.02011.04
5.2.110.3500.02711.25
5.2.100.3570.03710.95
5.2.90.3800.02711.04
5.2.80.3570.03010.97
5.2.70.3070.02311.09
5.2.60.3130.03011.03
5.2.50.3200.03011.00
5.2.40.2470.03310.88
5.2.30.2400.02711.04
5.2.20.2530.02710.80
5.2.10.2900.03010.85
5.2.00.2570.03310.71
5.1.60.2830.02710.07
5.1.50.2900.02710.00
5.1.40.2800.0279.96
5.1.30.2830.02710.33
5.1.20.3170.02310.38
5.1.10.2470.02710.06
5.1.00.2970.02710.08
5.0.50.1330.0238.44
5.0.40.1200.0238.39
5.0.30.1730.0338.21
5.0.20.1870.0178.25
5.0.10.1600.0208.21
5.0.00.1570.0338.14
4.4.90.1400.0105.89
4.4.80.1500.0075.78
4.4.70.1230.0135.85
4.4.60.1770.0135.79
4.4.50.1630.0205.80
4.4.40.1770.0305.86
4.4.30.1870.0175.77
4.4.20.1500.0205.87
4.4.10.1570.0175.82
4.4.00.1830.0235.83
4.3.110.1700.0135.75
4.3.100.1900.0135.82
4.3.90.1470.0205.71
4.3.80.1730.0275.67
4.3.70.1830.0135.79
4.3.60.1870.0105.73
4.3.50.1730.0175.78
4.3.40.1730.0275.74
4.3.30.0770.0174.56
4.3.20.1030.0204.51
4.3.10.0570.0234.51
4.3.00.0970.0174.51

preferences:
41.94 ms | 401 KiB | 5 Q