3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('aaa'=>'aaa', 'bbb'=>'bbb'); $k = 'bbb'; if(!array_key_exists($k,$arr)) $arr[$k] = 'ccc'; print_r($arr);

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)
8.3.60.0080.00818.30
8.3.50.0210.00322.13
8.3.40.0090.00618.75
8.3.30.0100.01019.05
8.3.20.0080.00020.39
8.3.10.0100.00323.66
8.3.00.0140.00320.49
8.2.180.0060.00916.75
8.2.170.0060.01022.96
8.2.160.0040.00922.20
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0000.00820.91
8.2.110.0050.00522.27
8.2.100.0080.00417.59
8.2.90.0040.00419.21
8.2.80.0040.00418.05
8.2.70.0050.00317.62
8.2.60.0030.00617.93
8.2.50.0030.00518.07
8.2.40.0070.00018.34
8.2.30.0040.00518.00
8.2.20.0040.00417.78
8.2.10.0040.00417.68
8.2.00.0000.00717.60
8.1.280.0130.00625.92
8.1.270.0000.00823.82
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0000.00823.91
8.1.230.0110.00019.14
8.1.220.0030.00517.74
8.1.210.0000.00918.77
8.1.200.0040.00417.35
8.1.190.0060.00317.41
8.1.180.0040.00418.10
8.1.170.0060.00318.50
8.1.160.0000.00722.01
8.1.150.0000.00718.62
8.1.140.0030.00517.43
8.1.130.0000.00717.80
8.1.120.0030.00517.39
8.1.110.0030.00517.36
8.1.100.0040.00417.40
8.1.90.0000.00717.44
8.1.80.0000.00717.38
8.1.70.0030.00317.43
8.1.60.0030.00617.59
8.1.50.0040.00417.48
8.1.40.0070.00017.45
8.1.30.0040.00417.64
8.1.20.0050.00217.67
8.1.10.0040.00417.52
8.1.00.0040.00417.41
8.0.300.0040.00418.77
8.0.290.0070.00017.05
8.0.280.0030.00318.32
8.0.270.0130.00317.12
8.0.260.0030.00316.74
8.0.250.0070.00016.92
8.0.240.0080.00016.92
8.0.230.0000.00716.90
8.0.220.0040.00416.79
8.0.210.0070.00016.80
8.0.200.0050.00316.81
8.0.190.0040.00416.86
8.0.180.0050.00316.84
8.0.170.0040.00416.92
8.0.160.0040.00416.87
8.0.150.0030.00316.75
8.0.140.0000.00716.85
8.0.130.0030.00313.27
8.0.120.0080.00016.75
8.0.110.0050.00316.94
8.0.100.0070.00016.75
8.0.90.0030.00316.89
8.0.80.0110.01016.81
8.0.70.0070.00016.84
8.0.60.0070.00016.88
8.0.50.0050.00316.68
8.0.30.0120.01017.15
8.0.20.0090.00917.40
8.0.10.0070.00017.07
8.0.00.0120.00616.65
7.4.330.0050.00015.00
7.4.320.0060.00016.57
7.4.300.0000.00616.51
7.4.290.0070.00016.63
7.4.280.0000.00716.43
7.4.270.0040.00416.52
7.4.260.0000.00716.38
7.4.250.0000.00716.44
7.4.240.0020.00516.46
7.4.230.0030.00316.41
7.4.220.0150.00316.52
7.4.210.0050.00916.60
7.4.200.0000.00716.42
7.4.190.0000.00616.68
7.4.160.0120.00416.54
7.4.150.0030.01317.40
7.4.140.0090.01117.86
7.4.130.0070.00916.49
7.4.120.0100.00716.45
7.4.110.0070.01016.54
7.4.100.0100.01016.49
7.4.90.0130.00616.41
7.4.80.0080.00816.56
7.4.70.0030.01216.51
7.4.60.0110.00516.30
7.4.50.0030.00516.29
7.4.40.0070.01022.77
7.4.30.0110.00516.49
7.4.10.0040.01415.16
7.4.00.0080.00814.97
7.3.330.0000.00512.80
7.3.320.0000.00612.97
7.3.310.0020.00516.22
7.3.300.0000.00716.00
7.3.290.0090.01016.12
7.3.280.0070.01116.15
7.3.270.0100.01017.40
7.3.260.0140.00316.19
7.3.250.0090.01016.28
7.3.240.0130.00316.08
7.3.230.0080.00816.39
7.3.210.0100.00616.42
7.3.200.0120.01219.39
7.3.190.0110.00616.34
7.3.180.0000.01716.16
7.3.170.0060.00916.51
7.3.160.0060.01216.38
7.3.130.0110.00714.51
7.3.120.0120.00414.81
7.3.110.0030.01614.68
7.3.100.0000.01614.45
7.3.90.0060.00314.86
7.3.80.0080.00814.54
7.3.70.0100.00314.55
7.3.60.0000.01514.75
7.3.50.0030.01014.79
7.3.40.0040.00814.54
7.3.30.0120.00414.73
7.3.20.0070.01016.65
7.3.10.0080.00716.53
7.3.00.0080.00716.46
7.2.330.0030.01316.54
7.2.320.0120.00416.38
7.2.310.0080.00816.21
7.2.300.0130.00316.42
7.2.290.0150.00316.68
7.2.260.0100.00614.84
7.2.250.0100.00614.75
7.2.240.0000.01815.14
7.2.230.0040.01115.00
7.2.220.0110.00714.75
7.2.210.0090.00615.00
7.2.200.0090.00014.99
7.2.190.0060.00314.80
7.2.180.0030.00615.04
7.2.170.0030.01014.68
7.2.160.0040.01515.07
7.2.150.0120.00316.96
7.2.140.0040.01116.80
7.2.130.0070.00716.73
7.2.120.0070.00716.80
7.2.110.0030.00916.73
7.2.100.0070.00816.70
7.2.90.0050.00816.72
7.2.80.0050.00716.81
7.2.70.0070.00816.71
7.2.60.0080.00516.50
7.2.50.0040.00816.54
7.2.40.0070.00916.70
7.2.30.0070.00716.68
7.2.20.0070.00816.82
7.2.10.0080.00816.71
7.2.00.0060.00917.41
7.1.330.0100.00715.91
7.1.320.0000.00815.76
7.1.310.0030.00615.50
7.1.300.0070.00715.73
7.1.290.0070.01015.65
7.1.280.0000.01315.82
7.1.270.0070.01015.50
7.1.260.0100.00315.59
7.1.250.0040.01015.59
7.1.240.0080.00515.60
7.1.230.0050.00615.43
7.1.220.0070.01015.54
7.1.210.0070.00715.63
7.1.200.0050.00715.48
7.1.190.0080.00615.63
7.1.180.0070.00715.49
7.1.170.0060.00515.51
7.1.160.0070.00815.50
7.1.150.0100.00515.66
7.1.140.0120.00315.72
7.1.130.0110.00515.72
7.1.120.0060.01215.59
7.1.110.0090.00915.75
7.1.100.0060.00916.39
7.1.90.0110.00515.64
7.1.80.0120.00515.53
7.1.70.0080.00716.09
7.1.60.0070.00916.82
7.1.50.0060.00815.95
7.1.40.0080.00715.88
7.1.30.0050.00915.64
7.1.20.0120.00315.79
7.1.10.0090.00515.67
7.1.00.0050.03117.96
7.0.330.0050.01015.24
7.0.320.0060.00615.42
7.0.310.0080.00315.12
7.0.300.0090.00415.31
7.0.290.0060.00815.21
7.0.280.0040.00815.18
7.0.270.0050.01015.19
7.0.260.0120.00315.09
7.0.250.0080.00715.28
7.0.240.0030.00715.17
7.0.230.0060.00915.26
7.0.220.0080.00615.30
7.0.210.0080.00515.27
7.0.200.0070.00515.69
7.0.190.0100.00615.13
7.0.180.0080.00815.17
7.0.170.0110.00415.32
7.0.160.0050.01115.01
7.0.150.0040.00915.34
7.0.140.0090.02617.53
7.0.130.0100.00115.25
7.0.120.0070.00915.16
7.0.110.0140.00115.29
7.0.100.0050.01115.19
7.0.90.0130.00315.08
7.0.80.0060.00915.26
7.0.70.0080.00615.30
7.0.60.0110.02916.80
7.0.50.0080.02916.25
7.0.40.0100.03115.66
7.0.30.0160.03015.38
7.0.20.0120.02715.49
7.0.10.0110.03015.53
7.0.00.0080.03115.61
5.6.400.0000.01214.14
5.6.390.0100.00713.97
5.6.380.0090.00514.43
5.6.370.0070.00714.15
5.6.360.0050.00514.22
5.6.350.0060.00614.12
5.6.340.0050.01214.04
5.6.330.0050.00714.09
5.6.320.0050.00714.15
5.6.310.0050.01114.08
5.6.300.0010.01014.10
5.6.290.0060.00814.00
5.6.280.0040.02816.45
5.6.270.0020.01014.32
5.6.260.0060.00613.97
5.6.250.0070.00513.91
5.6.240.0100.00513.95
5.6.230.0050.00914.14
5.6.220.0050.00714.14
5.6.210.0050.03416.35
5.6.200.0070.02015.44
5.6.190.0130.02516.04
5.6.180.0080.03016.19
5.6.170.0090.01916.09
5.6.160.0080.02216.06
5.6.150.0030.02615.33
5.6.140.0060.02215.47
5.6.130.0050.01915.29
5.6.120.0060.01816.41
5.6.110.0050.03616.59
5.6.100.0080.03416.61
5.6.90.0090.03416.43
5.6.80.0040.03116.13
5.6.70.1470.01916.24
5.6.60.0080.00613.88
5.6.50.0100.00314.02
5.6.40.0100.00814.26
5.6.30.0070.00413.87
5.6.20.0120.00414.04
5.6.10.0110.00514.23
5.6.00.0070.01214.25
5.5.380.0060.00612.44
5.5.370.0040.00912.55
5.5.360.0070.00612.59
5.5.350.0070.02015.27
5.5.340.0050.02914.20
5.5.330.0020.02315.23
5.5.320.0030.02415.07
5.5.310.0100.01815.05
5.5.300.0060.01914.45
5.5.290.0020.02214.23
5.5.280.0100.03015.34
5.5.270.0050.01915.18
5.5.260.0120.02815.34
5.5.250.0060.03315.30
5.5.240.0120.02615.11
5.5.230.0010.00812.53
5.5.220.0020.00712.47
5.5.210.0080.00412.40
5.5.200.0020.01012.36
5.5.190.0060.00712.30
5.5.180.0070.00612.37
5.5.170.0030.00712.48
5.5.160.0000.01112.44
5.5.150.0000.00912.46
5.5.140.0030.00712.44
5.5.130.0070.00412.38
5.5.120.0070.00412.60
5.5.110.0040.00912.32
5.5.100.0070.00612.46
5.5.90.0040.00812.40
5.5.80.0040.00712.43
5.5.70.0020.01112.55
5.5.60.0060.00912.38
5.5.50.0090.00612.24
5.5.40.0060.00912.53
5.5.30.0040.00912.43
5.5.20.0060.00712.38
5.5.10.0060.00912.44
5.5.00.0030.00912.57
5.4.450.0130.01814.14
5.4.440.0110.01614.01
5.4.430.0400.01614.10
5.4.420.0170.01614.04
5.4.410.0160.01114.03
5.4.400.0320.02313.76
5.4.390.0480.02113.74
5.4.380.0040.02413.72
5.4.370.0080.02113.77
5.4.360.0080.02413.87
5.4.350.0100.01913.59
5.4.340.0080.02113.75
5.4.330.0060.00411.16
5.4.320.0030.01911.67
5.4.310.0080.01811.65
5.4.300.0040.01811.63
5.4.290.0060.01911.63
5.4.280.0050.01811.57
5.4.270.0080.01911.53
5.4.260.0050.02011.58
5.4.250.0090.01411.61
5.4.240.0010.02111.65
5.4.230.0040.01811.72
5.4.220.0050.01911.60
5.4.210.0040.02011.63
5.4.200.0040.02211.48
5.4.190.0110.01711.72
5.4.180.0100.01911.53
5.4.170.0100.01811.69
5.4.160.0090.01811.62
5.4.150.0110.01811.55
5.4.140.0120.01711.56
5.4.130.0090.02111.65
5.4.120.0110.01711.51
5.4.110.0100.01811.54
5.4.100.0150.02511.53
5.4.90.0080.02011.53
5.4.80.0070.02311.66
5.4.70.0100.01811.51
5.4.60.0120.01611.50
5.4.50.0080.02011.46
5.4.40.0090.01911.47
5.4.30.0080.02011.49
5.4.20.0080.01911.56
5.4.10.0160.02911.53
5.4.00.0090.01711.34
5.3.290.0040.01911.70
5.3.280.0070.01711.62
5.3.270.0100.01911.56
5.3.260.0120.02611.63
5.3.250.0080.01911.63
5.3.240.0120.01711.54
5.3.230.0090.01711.57
5.3.220.0140.02211.65
5.3.210.0100.01611.63
5.3.200.0060.02011.61
5.3.190.0070.02011.59
5.3.180.0050.02211.69
5.3.170.0050.02211.67
5.3.160.0100.01811.70
5.3.150.0080.01911.68
5.3.140.0090.01711.65
5.3.130.0070.01811.59
5.3.120.0080.01911.57
5.3.110.0060.01811.54
5.3.100.0090.01711.47
5.3.90.0070.01711.47
5.3.80.0080.01811.42
5.3.70.0080.01811.37
5.3.60.0090.01811.43
5.3.50.0140.03211.38
5.3.40.0090.01811.38
5.3.30.0050.02011.32
5.3.20.0090.01611.23
5.3.10.0090.01711.21
5.3.00.0080.01911.20
5.2.170.0090.0199.61
5.2.160.0110.0189.61
5.2.150.0050.0219.61
5.2.140.0080.0219.61
5.2.130.0070.0209.59
5.2.120.0130.0329.59
5.2.110.0080.0219.59
5.2.100.0090.0219.59
5.2.90.0090.0199.59
5.2.80.0100.0199.59
5.2.70.0070.0239.59
5.2.60.0160.0449.57
5.2.50.0090.0219.55
5.2.40.0100.0199.54
5.2.30.0090.0209.53
5.2.20.0100.0199.52
5.2.10.0100.0189.48
5.2.00.0100.0189.41
5.1.60.0080.0189.05
5.1.50.0130.0289.05
5.1.40.0090.0179.04
5.1.30.0080.0209.21
5.1.20.0070.0209.23
5.1.10.0070.0209.09
5.1.00.0170.0279.09
5.0.50.0090.0138.33
5.0.40.0060.0158.26
5.0.30.0050.0218.17
5.0.20.0090.0138.15
5.0.10.0040.0158.14
5.0.00.0070.0198.14
4.4.90.0030.0157.41
4.4.80.0040.0117.40
4.4.70.0040.0137.39
4.4.60.0060.0107.40
4.4.50.0040.0137.40
4.4.40.0090.0177.38
4.4.30.0040.0147.40
4.4.20.0070.0097.44
4.4.10.0060.0107.44
4.4.00.0160.0377.40
4.3.110.0080.0107.35
4.3.100.0060.0107.35
4.3.90.0060.0097.34
4.3.80.0060.0177.31
4.3.70.0050.0127.33
4.3.60.0040.0117.33
4.3.50.0060.0127.33
4.3.40.0050.0167.29
4.3.30.0020.0136.66
4.3.20.0030.0136.66
4.3.10.0050.0116.64
4.3.00.0000.01312.79

preferences:
36.92 ms | 400 KiB | 5 Q