3v4l.org

run code in 300+ PHP versions simultaneously
<?php $search_array = array('first' => null, 'second' => 4); // returns false echo "1: ".(isset($search_array['first']))?'TRUE':'FALSE'; // returns true echo '2: '.(array_key_exists('first', $search_array))?'TRUE':'FALSE'; ?>

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)
8.3.40.0170.00318.84
8.3.30.0100.00720.21
8.3.20.0080.00018.72
8.3.10.0080.00021.08
8.3.00.0080.00019.79
8.2.170.0140.00022.96
8.2.160.0030.01020.57
8.2.150.0080.00024.18
8.2.140.0090.00024.66
8.2.130.0070.00026.16
8.2.120.0080.00019.77
8.2.110.0070.00420.98
8.2.100.0060.00617.91
8.2.90.0050.00319.17
8.2.80.0050.00317.97
8.2.70.0080.00017.47
8.2.60.0000.00717.93
8.2.50.0110.00018.07
8.2.40.0080.00018.28
8.2.30.0030.00519.36
8.2.20.0000.00717.70
8.2.10.0040.00417.73
8.2.00.0040.00417.79
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0150.00322.06
8.1.230.0040.00719.19
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0030.00617.11
8.1.190.0070.00017.52
8.1.180.0000.01018.10
8.1.170.0000.00718.34
8.1.160.0000.00818.80
8.1.150.0040.00418.61
8.1.140.0030.00517.34
8.1.130.0000.00717.79
8.1.120.0000.01117.40
8.1.110.0040.00417.45
8.1.100.0000.00717.31
8.1.90.0030.00317.28
8.1.80.0000.00717.44
8.1.70.0030.00517.27
8.1.60.0050.00317.44
8.1.50.0000.00817.41
8.1.40.0040.00417.51
8.1.30.0050.00217.63
8.1.20.0040.00417.46
8.1.10.0030.00617.55
8.1.00.0050.00317.52
8.0.300.0000.00818.77
8.0.290.0050.00316.63
8.0.280.0000.00718.44
8.0.270.0070.00017.16
8.0.260.0000.00816.81
8.0.250.0040.00416.83
8.0.240.0030.00616.98
8.0.230.0070.00016.86
8.0.220.0040.00416.88
8.0.210.0040.00416.79
8.0.200.0000.00616.93
8.0.190.0040.00416.96
8.0.180.0000.00716.85
8.0.170.0040.00416.80
8.0.160.0070.00016.82
8.0.150.0040.00416.86
8.0.140.0000.00816.75
8.0.130.0050.00013.34
8.0.120.0040.00416.75
8.0.110.0000.00816.63
8.0.100.0070.00016.64
8.0.90.0050.00316.65
8.0.80.0130.00616.91
8.0.70.0000.00716.87
8.0.60.0000.00716.82
8.0.50.0040.00416.87
8.0.30.0080.00917.16
8.0.20.0170.00917.40
8.0.10.0040.00416.90
8.0.00.0090.01216.65
7.4.330.0000.00516.83
7.4.320.0060.00016.61
7.4.300.0070.00016.49
7.4.290.0000.00716.61
7.4.280.0050.00316.48
7.4.270.0000.00716.39
7.4.260.0030.00313.29
7.4.250.0000.00816.48
7.4.240.0070.00016.65
7.4.230.0040.00416.65
7.4.220.0090.00916.37
7.4.210.0080.00616.64
7.4.200.0000.00716.55
7.4.190.0000.00716.38
7.4.160.0120.00316.51
7.4.150.0090.00917.40
7.4.140.0090.00817.86
7.4.130.0100.00916.44
7.4.120.0090.01016.53
7.4.110.0090.00916.51
7.4.100.0100.00616.59
7.4.90.0120.00616.59
7.4.80.0070.01019.39
7.4.70.0110.00616.36
7.4.60.0080.00816.45
7.4.50.0000.00816.52
7.4.40.0030.01322.77
7.4.30.0030.01316.40
7.4.00.0100.00315.00
7.3.330.0030.00313.10
7.3.320.0050.00313.00
7.3.310.0070.00016.23
7.3.300.0030.00316.27
7.3.290.0060.00916.21
7.3.280.0100.00716.25
7.3.270.0100.00717.40
7.3.260.0140.01018.24
7.3.250.0120.00416.27
7.3.240.0130.00616.57
7.3.230.0040.01216.39
7.3.210.0040.01616.57
7.3.200.0090.01519.39
7.3.190.0060.00916.42
7.3.180.0100.00616.42
7.3.170.0030.01416.27
7.3.160.0060.01016.24
7.3.120.0000.01215.00
7.3.10.0080.00616.45
7.3.00.0060.01016.31
7.2.330.0100.00716.40
7.2.320.0100.00716.31
7.2.310.0160.00916.39
7.2.300.0030.01216.56
7.2.290.0130.00316.38
7.2.130.0030.01016.60
7.2.120.0100.00216.69
7.2.110.0090.00716.55
7.2.100.0020.00916.66
7.2.90.0090.00716.67
7.2.80.0080.00816.89
7.2.70.0020.01116.86
7.2.60.0070.00616.82
7.2.50.0050.00916.77
7.2.40.0090.00916.54
7.2.30.0080.00616.55
7.2.20.0110.00416.75
7.2.10.0040.00916.68
7.2.00.0110.00716.87
7.1.250.0050.00515.62
7.1.200.0090.00615.86
7.1.70.0030.00616.80
7.1.60.0110.01119.24
7.1.50.0130.01016.72
7.1.00.0030.04722.57
7.0.200.0000.00716.72
7.0.140.0000.07722.18
7.0.100.0100.06721.97
7.0.90.0070.08321.74
7.0.80.0100.07021.76
7.0.70.0200.06721.82
7.0.60.0070.06721.72
7.0.50.0030.05022.18
7.0.40.0070.06719.96
7.0.30.0130.07720.10
7.0.20.0030.08320.08
7.0.10.0070.07319.99
7.0.00.0100.08020.04
5.6.280.0000.09321.01
5.6.250.0000.09020.68
5.6.240.0070.08320.75
5.6.230.0030.08720.61
5.6.220.0030.08320.66
5.6.210.0100.04020.56
5.6.200.0130.07021.05
5.6.190.0130.07721.04
5.6.180.0170.06021.07
5.6.170.0000.08021.16
5.6.160.0100.08021.07
5.6.150.0070.09721.04
5.6.140.0030.06320.93
5.6.130.0070.08320.93
5.6.120.0100.07020.93
5.6.110.0100.08721.04
5.6.100.0030.05321.00
5.6.90.0030.06321.11
5.6.80.0130.06720.32
5.6.70.0100.07320.44
5.6.60.0030.08320.36
5.6.50.0070.06720.39
5.6.40.0070.07020.39
5.6.30.0070.08720.29
5.6.20.0000.07020.37
5.6.10.0070.08020.38
5.6.00.0100.07720.27
5.5.380.0100.08720.36
5.5.370.0000.05720.48
5.5.360.0030.05320.33
5.5.350.0070.06020.32
5.5.340.0070.08020.79
5.5.330.0070.07320.86
5.5.320.0100.05020.86
5.5.310.0030.06320.92
5.5.300.0100.04720.86
5.5.290.0030.04720.79
5.5.280.0170.04020.91
5.5.270.0100.06720.75
5.5.260.0100.07720.71
5.5.250.0100.08020.41
5.5.240.0070.08320.19
5.5.230.0000.08720.28
5.5.220.0100.05320.15
5.5.210.0030.07320.19
5.5.200.0100.04020.21
5.5.190.0130.07320.24
5.5.180.0170.07320.11
5.5.160.0100.04020.22
5.5.150.0070.05320.16
5.5.140.0000.08720.16
5.5.130.0070.03319.94
5.5.120.0100.08020.17
5.5.110.0070.07320.20
5.5.100.0070.07020.06
5.5.90.0030.07020.10
5.5.80.0030.08019.94
5.5.70.0030.07720.09
5.5.60.0070.04720.02
5.5.50.0130.06320.14
5.5.40.0030.05720.11
5.5.30.0100.07720.04
5.5.20.0130.06720.14
5.5.10.0130.05020.06
5.5.00.0030.04720.04
5.4.450.0100.07319.30
5.4.440.0030.08319.16
5.4.430.0100.07719.44
5.4.420.0000.07019.13
5.4.410.0070.07319.31
5.4.400.0030.04718.98
5.4.390.0030.08318.82
5.4.380.0100.07019.13
5.4.370.0030.08319.05
5.4.360.0100.07019.10
5.4.350.0030.04319.23
5.4.340.0130.07719.12
5.4.320.0070.08019.03
5.4.310.0030.08019.13
5.4.300.0000.03718.81
5.4.290.0000.08019.14
5.4.280.0100.07319.07
5.4.270.0170.04319.05
5.4.260.0030.08718.90
5.4.250.0070.07719.13
5.4.240.0130.06718.95
5.4.230.0200.06319.04
5.4.220.0070.08019.22
5.4.210.0030.07018.95
5.4.200.0070.07019.09
5.4.190.0070.07319.02
5.4.180.0170.06319.02
5.4.170.0130.06718.96
5.4.160.0030.06018.93
5.4.150.0030.07319.07
5.4.140.0130.06716.37
5.4.130.0070.07016.36
5.4.120.0000.08316.32
5.4.110.0100.07016.25
5.4.100.0130.06316.41
5.4.90.0070.07316.42
5.4.80.0100.04316.42
5.4.70.0030.07316.25
5.4.60.0070.03716.19
5.4.50.0070.07316.28
5.4.40.0070.06316.26
5.4.30.0100.05316.33
5.4.20.0100.06716.37
5.4.10.0070.07316.27
5.4.00.0070.07315.79
5.3.290.0130.06714.65
5.3.280.0070.07014.43
5.3.270.0070.07714.47
5.3.260.0070.06014.59
5.3.250.0000.08014.46
5.3.240.0000.08314.51
5.3.230.0070.07014.58
5.3.220.0030.07314.52
5.3.210.0000.08014.55
5.3.200.0100.07014.54
5.3.190.0070.06714.54
5.3.180.0170.06014.53
5.3.170.0070.04714.54
5.3.160.0070.07714.54
5.3.150.0070.07714.50
5.3.140.0070.07014.38
5.3.130.0100.06314.53
5.3.120.0070.06714.40
5.3.110.0030.07714.50
5.3.100.0070.06014.01
5.3.90.0070.07313.97
5.3.80.0070.07013.87
5.3.70.0030.07313.95
5.3.60.0000.08013.79
5.3.50.0070.07313.89
5.3.40.0030.04313.94
5.3.30.0170.03013.90
5.3.20.0100.06713.68
5.3.10.0070.07713.68
5.3.00.0100.07013.68
5.2.170.0070.06013.68
5.2.160.0100.05013.68
5.2.150.0070.05713.68
5.2.140.0100.05713.68
5.2.130.0000.04313.68
5.2.120.0070.06013.68
5.2.110.0100.02713.68
5.2.100.0130.05313.68
5.2.90.0130.05013.68
5.2.80.0000.06313.68
5.2.70.0070.06013.68
5.2.60.0000.06713.68
5.2.50.0030.05713.68
5.2.40.0100.05313.68
5.2.30.0070.06013.68
5.2.20.0000.04013.68
5.2.10.0130.05013.68
5.2.00.0030.06313.68
5.1.60.0100.04713.68
5.1.50.0070.05313.68
5.1.40.0000.05313.68
5.1.30.0030.05713.68
5.1.20.0070.05013.68
5.1.10.0030.05013.68
5.1.00.0100.05013.68
5.0.50.0070.04013.68
5.0.40.0000.04313.68
5.0.30.0030.07013.68
5.0.20.0000.04313.68
5.0.10.0100.03713.68
5.0.00.0000.04013.68
4.4.90.0000.02713.68
4.4.80.0070.02713.68
4.4.70.0000.04013.68
4.4.60.0000.03313.68
4.4.50.0030.02013.68
4.4.40.0030.04713.68
4.4.30.0030.03713.68
4.4.20.0000.02013.68
4.4.10.0030.03013.68
4.4.00.0070.05013.68
4.3.110.0030.02013.68
4.3.100.0000.03313.68
4.3.90.0000.02713.68
4.3.80.0030.05013.68
4.3.70.0070.01313.68
4.3.60.0000.03313.68
4.3.50.0070.02013.68
4.3.40.0030.03713.68
4.3.30.0030.01313.68
4.3.20.0000.01713.68
4.3.10.0000.02313.68
4.3.00.0000.03313.68

preferences:
45.49 ms | 400 KiB | 5 Q