3v4l.org

run code in 300+ PHP versions simultaneously
<?php $assoc = array( "a" => 1, "b" => 0, 0 => 0 ); function is_assoc($array){ return !ctype_digit( implode('', array_keys($array)) ); } echo is_assoc($assoc); ?>

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)
8.3.60.0180.00416.38
8.3.50.0090.00921.21
8.3.40.0170.00318.82
8.3.30.0110.00319.15
8.3.20.0070.00019.99
8.3.10.0080.00021.97
8.3.00.0000.00922.37
8.2.180.0120.00316.38
8.2.170.0140.00022.96
8.2.160.0090.00919.16
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00826.16
8.2.120.0050.00319.23
8.2.110.0000.00922.21
8.2.100.0060.00617.80
8.2.90.0000.00817.97
8.2.80.0050.00317.97
8.2.70.0040.00417.46
8.2.60.0080.00017.93
8.2.50.0050.00318.07
8.2.40.0000.00918.20
8.2.30.0000.00717.93
8.2.20.0050.00317.52
8.2.10.0040.00417.78
8.2.00.0000.00717.68
8.1.280.0140.00025.92
8.1.270.0000.00818.41
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0000.00922.42
8.1.230.0070.00421.04
8.1.220.0040.00417.74
8.1.210.0080.00018.95
8.1.200.0060.00317.23
8.1.190.0080.00017.51
8.1.180.0000.00818.57
8.1.170.0040.00418.37
8.1.160.0040.00422.18
8.1.150.0030.00518.63
8.1.140.0040.00417.48
8.1.130.0030.00317.86
8.1.120.0040.00417.46
8.1.110.0030.00517.44
8.1.100.0030.00517.47
8.1.90.0000.00717.38
8.1.80.0040.00417.43
8.1.70.0040.00417.29
8.1.60.0030.00517.58
8.1.50.0000.00717.50
8.1.40.0040.00417.42
8.1.30.0000.00717.62
8.1.20.0000.00817.64
8.1.10.0000.00717.50
8.1.00.0040.00417.43
8.0.300.0040.00420.04
8.0.290.0060.00316.75
8.0.280.0000.00718.34
8.0.270.0030.00317.29
8.0.260.0030.00316.68
8.0.250.0000.00716.84
8.0.240.0040.00416.93
8.0.230.0030.00316.98
8.0.220.0000.00716.86
8.0.210.0030.00316.79
8.0.200.0000.00616.93
8.0.190.0060.00316.95
8.0.180.0040.00416.92
8.0.170.0040.00416.91
8.0.160.0040.00416.87
8.0.150.0000.00816.80
8.0.140.0040.00416.88
8.0.130.0000.00613.31
8.0.120.0070.00316.73
8.0.110.0050.00316.87
8.0.100.0070.00016.76
8.0.90.0040.00416.85
8.0.80.0070.01116.76
8.0.70.0050.00316.91
8.0.60.0000.00716.94
8.0.50.0080.00016.88
8.0.30.0150.00417.03
8.0.20.0110.00617.40
8.0.10.0040.00417.00
8.0.00.0090.00816.80
7.4.330.0060.00015.00
7.4.320.0000.00716.63
7.4.300.0030.00316.59
7.4.290.0070.00416.63
7.4.280.0000.00816.61
7.4.270.0030.00316.59
7.4.260.0070.00016.57
7.4.250.0000.00716.35
7.4.240.0020.00516.59
7.4.230.0030.00316.48
7.4.220.0120.00616.59
7.4.210.0080.01016.57
7.4.200.0030.00316.63
7.4.190.0000.00716.46
7.4.160.0090.00616.64
7.4.150.0110.00717.40
7.4.140.0120.01017.86
7.4.130.0090.00816.42
7.4.120.0070.00916.51
7.4.110.0100.00616.56
7.4.100.0080.01616.43
7.4.90.0090.00916.54
7.4.80.0030.01719.39
7.4.70.0140.00316.33
7.4.60.0150.00316.43
7.4.50.0040.00016.54
7.4.40.0060.01022.77
7.4.30.0080.00816.59
7.4.10.0110.00714.77
7.4.00.0100.00714.85
7.3.330.0000.00513.09
7.3.320.0030.00313.20
7.3.310.0000.00716.21
7.3.300.0070.00016.27
7.3.290.0110.00416.25
7.3.280.0100.00716.23
7.3.270.0110.00517.40
7.3.260.0140.00316.61
7.3.250.0100.01116.31
7.3.240.0120.00916.53
7.3.230.0040.01516.49
7.3.210.0100.00716.46
7.3.200.0060.01016.49
7.3.190.0140.00716.59
7.3.180.0090.00616.54
7.3.170.0060.01016.27
7.3.160.0110.00616.21
7.3.130.0100.01014.39
7.3.120.0060.00914.85
7.3.110.0030.01014.80
7.3.100.0070.00714.68
7.3.90.0070.00714.84
7.3.80.0090.00314.98
7.3.70.0090.00614.47
7.3.60.0080.00814.92
7.3.50.0040.01114.88
7.3.40.0060.00914.60
7.3.30.0070.00714.87
7.3.20.0030.01016.67
7.3.10.0120.00016.51
7.3.00.0000.01416.48
7.2.330.0070.01716.54
7.2.320.0060.01816.66
7.2.310.0040.01616.66
7.2.300.0160.00716.33
7.2.290.0070.01016.59
7.2.260.0090.00914.91
7.2.250.0000.01814.62
7.2.240.0030.01014.99
7.2.230.0100.01014.72
7.2.220.0060.00914.89
7.2.210.0120.00315.08
7.2.200.0060.00614.87
7.2.190.0000.01415.00
7.2.180.0040.01114.95
7.2.170.0030.01414.98
7.2.160.0000.01514.84
7.2.150.0030.01416.58
7.2.140.0060.00616.75
7.2.130.0040.01416.70
7.2.120.0060.00316.69
7.2.110.0030.00616.96
7.2.100.0140.00016.56
7.2.90.0090.00416.75
7.2.80.0000.01316.71
7.2.70.0080.00816.84
7.2.60.0040.00816.92
7.2.50.0120.00316.63
7.2.40.0000.01216.77
7.2.30.0040.01516.99
7.2.20.0060.00916.86
7.2.10.0040.00716.84
7.2.00.0020.00917.78
7.1.330.0100.00315.70
7.1.320.0060.00615.92
7.1.310.0090.00615.82
7.1.300.0040.01115.90
7.1.290.0090.00615.75
7.1.280.0060.00615.69
7.1.270.0030.01215.57
7.1.260.0120.00015.66
7.1.250.0030.01315.70
7.1.240.0030.00915.80
7.1.230.0040.00715.73
7.1.220.0030.01015.64
7.1.210.0100.00315.71
7.1.200.0070.00715.77
7.1.190.0030.01015.66
7.1.180.0030.00615.64
7.1.170.0040.01115.90
7.1.160.0150.00015.87
7.1.150.0040.01115.47
7.1.140.0060.00915.86
7.1.130.0110.00015.64
7.1.120.0000.01115.89
7.1.110.0030.01415.52
7.1.100.0060.00716.70
7.1.90.0090.00315.68
7.1.80.0030.01315.87
7.1.70.0020.00716.29
7.1.60.0050.00717.69
7.1.50.0000.01916.22
7.1.40.0030.01015.76
7.1.30.0070.00415.53
7.1.20.0070.00715.80
7.1.10.0000.01315.72
7.1.00.0050.03119.16
7.0.330.0000.01115.30
7.0.320.0000.01615.29
7.0.310.0030.01215.34
7.0.300.0040.00715.32
7.0.290.0030.00515.10
7.0.280.0030.01015.38
7.0.270.0070.00715.40
7.0.260.0120.00415.33
7.0.250.0040.01115.18
7.0.240.0030.00815.18
7.0.230.0090.00615.35
7.0.220.0040.01115.56
7.0.210.0000.01315.11
7.0.200.0060.00515.88
7.0.190.0040.00415.53
7.0.180.0040.01115.26
7.0.170.0030.00615.20
7.0.160.0080.00315.45
7.0.150.0070.00715.17
7.0.140.0050.03618.66
7.0.130.0100.00715.50
7.0.120.0070.00715.54
7.0.110.0030.00615.18
7.0.100.0030.01215.45
7.0.90.0070.00714.97
7.0.80.0110.00315.26
7.0.70.0080.00015.36
7.0.60.0030.02617.65
7.0.50.0060.04616.67
7.0.40.0070.04216.89
7.0.30.0130.02416.83
7.0.20.0150.04016.82
7.0.10.0180.02716.73
7.0.00.0070.04316.64
5.6.400.0060.00614.62
5.6.390.0060.00314.49
5.6.380.0060.00614.43
5.6.370.0030.00614.59
5.6.360.0030.00614.21
5.6.350.0040.01214.50
5.6.340.0060.00914.63
5.6.330.0100.00314.60
5.6.320.0070.00713.97
5.6.310.0060.00314.45
5.6.300.0030.01014.54
5.6.290.0090.00014.29
5.6.280.0020.04317.77
5.6.270.0040.01414.37
5.6.260.0060.00614.40
5.6.250.0100.00714.44
5.6.240.0110.00314.36
5.6.230.0060.00914.46
5.6.220.0040.00814.55
5.6.210.0100.03817.61
5.6.200.0070.04416.29
5.6.190.0100.02717.40
5.6.180.1700.02917.47
5.6.170.0210.03617.32
5.6.160.0050.04217.30
5.6.150.0100.04116.06
5.6.140.0090.04416.21
5.6.130.0050.04016.18
5.6.120.0080.02817.84
5.6.110.0090.04217.59
5.6.100.0060.02617.71
5.6.90.0100.04317.59
5.6.80.0070.04117.39
5.6.70.0080.04317.43
5.6.60.0070.00414.04
5.6.50.0070.00314.20
5.6.40.0030.01414.34
5.6.30.0000.01714.23
5.6.20.0060.01014.54
5.6.10.0070.00714.17
5.6.00.0090.00614.23
5.5.380.0040.00414.05
5.5.370.0090.00914.32
5.5.360.0040.00814.11
5.5.350.0100.02017.37
5.5.340.0080.02016.14
5.5.330.0090.03017.26
5.5.320.0100.02617.40
5.5.310.0220.04217.20
5.5.300.0060.03016.13
5.5.290.0030.04516.28
5.5.280.0030.03617.36
5.5.270.0100.04317.41
5.5.260.0000.04517.50
5.5.250.0050.03717.53
5.5.240.0060.04517.12
5.5.230.0070.00713.84
5.5.220.0000.01114.15
5.5.210.0030.01014.02
5.5.200.0100.00614.33
5.5.190.0040.01114.25
5.5.180.0030.01214.11
5.5.170.0090.00614.26
5.5.160.0110.00314.05
5.5.150.0030.00914.27
5.5.140.0040.00714.20
5.5.130.0030.01314.24
5.5.120.0030.01014.00
5.5.110.0060.00614.24
5.5.100.0040.00814.17
5.5.90.0030.00914.23
5.5.80.0100.00314.03
5.5.70.0060.01114.04
5.5.60.0040.00414.31
5.5.50.0100.00314.10
5.5.40.0030.00714.28
5.5.30.0040.01114.17
5.5.20.0060.00914.36
5.5.10.0000.01013.70
5.5.00.0030.00914.09
5.4.450.0130.03915.66
5.4.440.0370.03515.66
5.4.430.0500.03315.87
5.4.420.0290.02815.85
5.4.410.0090.02815.80
5.4.400.0290.03515.38
5.4.390.0680.03215.43
5.4.380.0130.03215.34
5.4.370.0030.03415.46
5.4.360.0140.02515.47
5.4.350.0070.02712.08
5.4.340.0040.02412.08
5.4.330.0000.01112.14
5.4.320.0100.01712.32
5.4.310.0050.02712.32
5.4.300.0050.02212.32
5.4.290.0040.02412.32
5.4.280.0050.02112.27
5.4.270.0070.02312.27
5.4.260.0080.02112.27
5.4.250.0050.03115.44
5.4.240.0030.04715.55
5.4.230.0050.02715.46
5.4.220.0020.03515.54
5.4.210.0120.02315.39
5.4.200.0050.03015.48
5.4.190.0080.02815.53
5.4.180.0020.03415.60
5.4.170.0050.04115.45
5.4.160.0070.02815.56
5.4.150.0060.03015.55
5.4.140.0100.02314.24
5.4.130.0040.02814.34
5.4.120.0080.02514.36
5.4.110.0040.03214.30
5.4.100.0090.02514.38
5.4.90.0070.02314.30
5.4.80.0110.03514.33
5.4.70.0120.02014.24
5.4.60.0110.02114.25
5.4.50.0030.02814.23
5.4.40.0030.04014.32
5.4.30.0030.02814.28
5.4.20.0050.02814.32
5.4.10.0030.03214.24
5.4.00.0050.02914.09
5.3.290.0090.02012.47
5.3.280.0070.04013.41
5.3.270.0080.03313.45
5.3.260.0050.04413.48
5.3.250.0020.03213.29
5.3.240.0030.03013.40
5.3.230.0040.03113.41
5.3.220.0090.02713.39
5.3.210.0050.02913.30
5.3.200.0080.02313.35
5.3.190.0080.02713.44
5.3.180.0100.02213.34
5.3.170.0050.03713.44
5.3.160.0020.03513.36
5.3.150.0070.02513.38
5.3.140.0050.03213.44
5.3.130.0070.02813.39
5.3.120.0030.03213.38
5.3.110.0030.03213.26
5.3.100.0090.02513.08
5.3.90.0010.03613.17
5.3.80.0050.03313.12
5.3.70.0030.04013.07
5.3.60.0060.02613.12
5.3.50.0050.02713.04
5.3.40.0060.02613.04
5.3.30.0090.02313.06
5.3.20.0050.02712.87
5.3.10.0040.02912.85
5.3.00.0080.02512.80
5.2.170.0070.04011.12
5.2.160.0100.03311.21
5.2.150.0070.04011.04
5.2.140.0070.05311.22
5.2.130.0100.03311.29
5.2.120.0070.03711.18
5.2.110.0130.03311.19
5.2.100.0030.04311.18
5.2.90.0070.03711.10
5.2.80.0070.04011.10
5.2.70.0170.05311.30
5.2.60.0100.04311.13
5.2.50.0100.03711.02
5.2.40.0070.04010.99
5.2.30.0030.04311.05
5.2.20.0070.03710.92
5.2.10.0100.03310.92
5.2.00.0070.04010.68
5.1.60.0000.03710.24
5.1.50.0100.03010.04
5.1.40.0070.04710.01
5.1.30.0000.04010.55
5.1.20.0000.04010.53
5.1.10.0100.03010.22
5.1.00.0100.03010.03
5.0.50.0030.0278.58
5.0.40.0030.0278.39
5.0.30.0070.0378.45
5.0.20.0070.0238.15
5.0.10.0030.0278.01
5.0.00.0070.0478.21
4.4.90.0000.0336.34
4.4.80.0000.0236.34
4.4.70.0000.0236.34
4.4.60.0070.0276.34
4.4.50.0000.0236.34
4.4.40.0030.0336.34
4.4.30.0000.0336.34
4.4.20.0030.0236.34
4.4.10.0030.0206.34
4.4.00.0030.0436.34
4.3.110.0000.0236.34
4.3.100.0000.0236.34
4.3.90.0030.0206.34
4.3.80.0030.0336.34
4.3.70.0030.0236.34
4.3.60.0000.0206.34
4.3.50.0030.0206.34
4.3.40.0030.0376.34
4.3.30.0000.0306.34
4.3.20.0000.0206.34
4.3.10.0030.0206.34
4.3.00.0100.0277.60

preferences:
47.46 ms | 401 KiB | 5 Q