3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array("key" => "value" . "-" . "value"); echo var_dump(serialize($arr)); echo "<hr />"; echo json_encode(unserialize(serialize($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)
8.3.60.0090.00918.39
8.3.50.0160.00021.08
8.3.40.0140.00718.68
8.3.30.0070.00720.39
8.3.20.0040.00420.34
8.3.10.0000.00822.05
8.3.00.0060.00322.52
8.2.180.0160.00316.63
8.2.170.0110.00722.96
8.2.160.0120.00621.83
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00420.69
8.2.110.0040.00422.32
8.2.100.0070.00717.91
8.2.90.0000.00818.98
8.2.80.0000.00819.41
8.2.70.0030.00617.35
8.2.60.0000.00817.78
8.2.50.0060.00318.07
8.2.40.0040.00419.90
8.2.30.0000.00819.51
8.2.20.0040.00417.68
8.2.10.0040.00417.62
8.2.00.0050.00317.62
8.1.270.0000.00723.99
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0060.00323.88
8.1.230.0040.00821.00
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00317.25
8.1.190.0000.00817.40
8.1.180.0040.00418.10
8.1.170.0040.00418.48
8.1.160.0000.00818.82
8.1.150.0000.00918.63
8.1.140.0040.00417.38
8.1.130.0000.00717.73
8.1.120.0040.00417.43
8.1.110.0030.00517.33
8.1.100.0030.00617.29
8.1.90.0070.00017.32
8.1.80.0000.00717.40
8.1.70.0080.00017.29
8.1.60.0050.00317.53
8.1.50.0000.00817.51
8.1.40.0030.00517.42
8.1.30.0040.00417.53
8.1.20.0040.00417.60
8.1.10.0050.00317.41
8.1.00.0080.00317.44
8.0.300.0000.00718.77
8.0.290.0040.00417.16
8.0.280.0000.00718.32
8.0.270.0030.00317.15
8.0.260.0000.00716.79
8.0.250.0030.00317.02
8.0.240.0030.00517.01
8.0.230.0030.00416.83
8.0.220.0030.00316.90
8.0.210.0040.00416.86
8.0.200.0030.00316.97
8.0.190.0020.00516.84
8.0.180.0040.00416.92
8.0.170.0080.00016.82
8.0.160.0070.00016.80
8.0.150.0040.00416.88
8.0.140.0080.00016.77
8.0.130.0000.00613.30
8.0.120.0040.00416.77
8.0.110.0050.00216.71
8.0.100.0050.00316.79
8.0.90.0000.00716.85
8.0.80.0090.00616.92
8.0.70.0000.00717.00
8.0.60.0050.00216.93
8.0.50.0030.00516.95
8.0.30.0100.00917.00
8.0.20.0110.01217.40
8.0.10.0080.00017.12
8.0.00.0090.00916.77
7.4.330.0030.00315.00
7.4.320.0040.00416.57
7.4.300.0040.00416.44
7.4.290.0000.00816.35
7.4.280.0000.00716.43
7.4.270.0000.00716.45
7.4.260.0000.00513.27
7.4.250.0000.00816.51
7.4.240.0040.00416.42
7.4.230.0080.00016.44
7.4.220.0120.00916.44
7.4.210.0090.00616.54
7.4.200.0000.00716.33
7.4.190.0000.00716.39
7.4.160.0060.01616.57
7.4.150.0110.00717.40
7.4.140.0120.00917.86
7.4.130.0090.00916.57
7.4.120.0070.01116.40
7.4.110.0090.00916.39
7.4.100.0060.01516.60
7.4.90.0140.01116.62
7.4.80.0120.00619.39
7.4.70.0070.01016.42
7.4.60.0030.01316.38
7.4.50.0040.00416.34
7.4.40.0130.00322.77
7.4.30.0170.00716.33
7.4.00.0100.00315.09
7.3.330.0050.00013.09
7.3.320.0000.00613.00
7.3.310.0000.00716.00
7.3.300.0060.00016.18
7.3.290.0100.00316.17
7.3.280.0080.00716.20
7.3.270.0130.00317.40
7.3.260.0070.01016.26
7.3.250.0100.00716.31
7.3.240.0130.00316.19
7.3.230.0100.00616.39
7.3.210.0060.01216.31
7.3.200.0070.01119.39
7.3.190.0120.00916.42
7.3.180.0120.00416.27
7.3.170.0100.00716.43
7.3.160.0060.01116.02
7.3.120.0040.01214.80
7.3.10.0060.00316.64
7.3.00.0060.00616.49
7.2.330.0080.00916.52
7.2.320.0060.01216.54
7.2.310.0130.00316.53
7.2.300.0120.00616.26
7.2.290.0030.01416.66
7.2.130.0070.00516.73
7.2.120.0050.00816.79
7.2.110.0020.01216.71
7.2.100.0060.00616.66
7.2.90.0100.00316.80
7.2.80.0060.00816.88
7.2.70.0030.00816.85
7.2.60.0030.00916.60
7.2.50.0040.00716.57
7.2.40.0040.01116.82
7.2.30.0070.00316.77
7.2.20.0080.00516.65
7.2.10.0050.00916.82
7.2.00.0070.00617.41
7.1.250.0070.00815.63
7.1.240.0070.00315.68
7.1.230.0000.01415.89
7.1.220.0040.00415.84
7.1.210.0060.00615.34
7.1.200.0070.00715.83
7.1.190.0130.00015.43
7.1.180.0090.00615.66
7.1.170.0070.00715.75
7.1.160.0070.00315.69
7.1.150.0030.01015.57
7.1.140.0030.00615.71
7.1.130.0030.01015.77
7.1.120.0060.00615.60
7.1.110.0040.01115.77
7.1.100.0050.00716.81
7.1.90.0080.00415.70
7.1.80.0040.00415.63
7.1.70.0050.00516.22
7.1.60.0090.00817.45
7.1.50.0090.00716.20
7.1.40.0100.00715.81
7.1.30.0000.01015.48
7.1.20.0000.01415.81
7.1.10.0000.01315.40
7.1.00.0040.04418.91
7.0.330.0100.00315.49
7.0.320.0080.00815.39
7.0.310.0100.00715.43
7.0.300.0080.00615.21
7.0.290.0070.00715.07
7.0.280.0110.00415.44
7.0.270.0050.00315.26
7.0.260.0030.01315.42
7.0.250.0080.00415.59
7.0.240.0030.00915.45
7.0.230.0120.00315.35
7.0.220.0060.00915.37
7.0.210.0000.01315.23
7.0.200.0030.00915.92
7.0.190.0030.01015.20
7.0.180.0100.00315.12
7.0.170.0040.00415.49
7.0.160.0030.00715.28
7.0.150.0030.00515.42
7.0.140.0030.04118.65
7.0.130.0040.00815.36
7.0.120.0070.00715.26
7.0.110.0030.00715.30
7.0.100.0060.00315.29
7.0.90.0110.00015.06
7.0.80.0220.02217.54
7.0.70.0130.02517.61
7.0.60.0220.02617.57
7.0.50.0180.02517.76
7.0.40.0020.02516.73
7.0.30.0080.02216.67
7.0.20.0030.02516.78
7.0.10.0070.02016.51
7.0.00.0040.02516.64
5.6.380.0040.00714.36
5.6.370.0070.00714.46
5.6.360.0040.00714.38
5.6.350.0060.00314.06
5.6.340.0080.00414.11
5.6.330.0030.01014.11
5.6.320.0100.00314.20
5.6.310.0060.00614.50
5.6.300.0070.00714.33
5.6.290.0030.00614.47
5.6.280.0050.04017.62
5.6.270.0070.00714.21
5.6.260.0030.01014.14
5.6.250.0070.00714.10
5.6.240.0090.00314.41
5.6.230.0030.02517.31
5.6.220.0070.04017.47
5.6.210.0050.02317.29
5.6.200.0060.02317.47
5.6.190.0090.01717.79
5.6.180.0050.02317.49
5.6.170.0030.02317.74
5.6.160.0070.03117.64
5.6.150.0050.02517.75
5.6.140.0060.02117.69
5.6.130.0060.03017.65
5.6.120.0030.02717.66
5.6.110.0030.02317.64
5.6.100.0050.02417.59
5.6.90.0070.02517.41
5.6.80.0050.03517.30
5.6.70.0020.04817.23
5.6.60.0000.04817.13
5.6.50.0130.03517.33
5.6.40.0060.02817.31
5.6.30.0050.03117.48
5.6.20.0030.05017.36
5.6.10.0060.04317.26
5.6.00.0050.03717.16
5.5.380.0060.00611.26
5.5.370.0080.02315.69
5.5.360.0050.02415.79
5.5.350.0070.02015.61
5.5.340.0020.02715.85
5.5.330.0100.01715.82
5.5.320.0050.02516.05
5.5.310.0030.02815.61
5.5.300.0050.01915.90
5.5.290.0030.02315.82
5.5.280.0120.01815.72
5.5.270.0010.02515.98
5.5.260.0050.02215.97
5.5.250.0080.03815.85
5.5.240.0050.02315.69
5.5.230.0060.03815.65
5.5.220.0070.02715.64
5.5.210.0110.03015.55
5.5.200.0070.03815.53
5.5.190.0070.03615.62
5.5.180.0090.03715.72
5.5.170.0030.00711.04
5.5.160.0060.03815.68
5.5.150.0100.02915.53
5.5.140.0030.04115.68
5.5.130.0080.02815.49
5.5.120.0110.03815.53
5.5.110.0080.02515.37
5.5.100.0060.04515.60
5.5.90.0040.02715.35
5.5.80.0030.04815.29
5.5.70.0090.04515.54
5.5.60.0030.02315.38
5.5.50.0070.04315.43
5.5.40.0070.03215.39
5.5.30.0030.04515.41
5.5.20.0080.03015.54
5.5.10.0030.04515.42
5.5.00.0080.03815.55
5.4.450.0050.02015.06
5.4.440.0020.02415.15
5.4.430.0030.03515.21
5.4.420.0000.02815.26
5.4.410.0030.02015.02
5.4.400.0000.02815.03
5.4.390.0050.03814.85
5.4.380.0020.02514.92
5.4.370.0030.02914.87
5.4.360.0060.03715.03
5.4.350.0050.02614.96
5.4.340.0070.03815.16
5.4.330.0030.00710.88
5.4.320.0010.03115.06
5.4.310.0070.04215.10
5.4.300.0050.04215.04
5.4.290.0030.04115.01
5.4.280.0050.02514.94
5.4.270.0030.04614.97
5.4.260.0030.04715.08
5.4.250.0050.04114.96
5.4.240.0100.04014.94
5.4.230.0070.04215.14
5.4.220.0050.04014.68
5.4.210.0070.04215.01
5.4.200.0120.02214.97
5.4.190.0100.02814.89
5.4.180.0060.04014.90
5.4.170.0050.04014.92
5.4.160.0080.04014.97
5.4.150.0050.03014.97
5.4.140.0050.04214.54
5.4.130.0050.03614.33
5.4.120.0060.03814.54
5.4.110.0080.03514.40
5.4.100.0140.02514.62
5.4.90.0020.03814.58
5.4.80.0050.03814.43
5.4.70.0090.02014.27
5.4.60.0050.02314.45
5.4.50.0090.01714.24
5.4.40.0030.02214.40
5.4.30.0050.04014.45
5.4.20.0000.03014.36
5.4.10.0030.04014.48
5.4.00.0070.03614.48
5.3.290.0100.03814.21
5.3.280.0080.03114.16
5.3.270.0110.03714.27
5.3.260.0140.03414.16
5.3.250.0030.04014.19
5.3.240.0050.03814.10
5.3.230.0030.03514.16
5.3.220.0080.03814.18
5.3.210.0080.03714.14
5.3.200.0070.04014.16
5.3.190.0040.04214.15
5.3.180.0060.02814.19
5.3.170.0030.02814.20
5.3.160.0030.04014.10
5.3.150.0090.02414.23
5.3.140.0050.03514.22
5.3.130.0080.03914.24
5.3.120.0080.03114.14
5.3.110.0050.02414.25
5.3.100.0090.02214.22
5.3.90.0110.03014.25
5.3.80.0070.03414.10
5.3.70.0090.02014.15
5.3.60.0050.04014.27
5.3.50.0050.03814.18
5.3.40.0060.04214.14
5.3.30.0010.03114.27
5.3.20.0080.02214.11
5.3.10.0060.03314.10
5.3.00.0030.04014.10
5.2.170.0010.02314.10
5.2.160.0010.02314.10
5.2.150.0030.02014.10
5.2.140.0060.03014.10
5.2.130.0040.01814.10
5.2.120.0050.02314.10
5.2.110.0030.02314.10
5.2.100.0070.02514.10
5.2.90.0100.03014.10
5.2.80.0090.02814.10
5.2.70.0060.02814.10
5.2.60.0080.02514.10
5.2.50.0060.02814.10
5.2.40.0070.03314.10
5.2.30.0030.02314.10
5.2.20.0040.03214.10
5.2.10.0030.02114.10
5.2.00.0050.02014.10
5.1.60.0060.02614.10
5.1.50.0020.03114.10
5.1.40.0030.02914.10
5.1.30.0040.02914.10
5.1.20.0090.02314.10
5.1.10.0050.02814.10
5.1.00.0030.01814.10
5.0.50.0050.02014.10
5.0.40.0070.01814.10
5.0.30.0050.03314.10
5.0.20.0010.01814.10
5.0.10.0030.01214.10
5.0.00.0030.03614.10
4.4.90.0030.01514.10
4.4.80.0050.01114.10
4.4.70.0050.01514.10
4.4.60.0040.01314.10
4.4.50.0030.01914.10
4.4.40.0010.03114.10
4.4.30.0000.01914.10
4.4.20.0030.01914.10
4.4.10.0080.01214.10
4.4.00.0000.03014.10
4.3.110.0050.01414.10
4.3.100.0040.01514.10
4.3.90.0010.01314.10
4.3.80.0010.03314.10
4.3.70.0030.01514.10
4.3.60.0030.01714.10
4.3.50.0020.01914.10
4.3.40.0020.02214.10
4.3.30.0020.01714.10
4.3.20.0000.01514.10
4.3.10.0010.01314.10
4.3.00.0040.01614.10

preferences:
38.43 ms | 400 KiB | 5 Q