3v4l.org

run code in 300+ PHP versions simultaneously
<?php if(!function_exists('json_encode'))die(); $types = array( 'boolean' => true, 'integer' => 1, 'double' => 2.2, 'NULL' => NULL); foreach ($types as $key => $type) { echo "$key: var_export>" . var_export($type, 1) . " json_encode>" . json_encode($type) . "\n"; }

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)
8.3.60.0070.01318.30
8.3.50.0080.01222.05
8.3.40.0100.00718.57
8.3.30.0070.01120.39
8.3.20.0070.00020.32
8.3.10.0070.00022.00
8.3.00.0080.00022.46
8.2.180.0150.00616.59
8.2.170.0140.00722.96
8.2.160.0070.00720.35
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0020.00526.16
8.2.120.0050.00319.55
8.2.110.0090.00022.00
8.2.100.0090.00317.78
8.2.90.0000.00817.91
8.2.80.0050.00517.97
8.2.70.0030.00617.63
8.2.60.0110.00018.03
8.2.50.0030.00618.07
8.2.40.0000.00818.16
8.2.30.0000.00718.12
8.2.20.0000.00717.71
8.2.10.0040.00417.68
8.2.00.0080.00017.80
8.1.280.0220.00425.92
8.1.270.0060.00324.66
8.1.260.0040.00426.35
8.1.250.0100.00328.09
8.1.240.0040.00422.55
8.1.230.0030.00720.88
8.1.220.0040.00417.74
8.1.210.0000.00818.95
8.1.200.0060.00317.13
8.1.190.0030.00617.43
8.1.180.0030.00619.01
8.1.170.0000.00918.57
8.1.160.0030.00322.18
8.1.150.0080.00018.63
8.1.140.0040.00417.45
8.1.130.0030.00317.87
8.1.120.0000.00817.47
8.1.110.0030.00517.37
8.1.100.0000.00917.40
8.1.90.0030.00317.40
8.1.80.0000.00817.36
8.1.70.0030.00317.40
8.1.60.0090.00017.59
8.1.50.0040.00417.53
8.1.40.0030.00517.35
8.1.30.0030.00617.62
8.1.20.0050.00317.69
8.1.10.0000.00917.40
8.1.00.0000.00817.48
8.0.300.0000.00720.04
8.0.290.0030.00317.15
8.0.280.0030.00318.51
8.0.270.0050.00317.12
8.0.260.0000.00616.82
8.0.250.0000.00716.87
8.0.240.0060.00316.96
8.0.230.0000.00816.78
8.0.220.0030.00316.91
8.0.210.0030.00316.81
8.0.200.0030.00316.83
8.0.190.0030.00516.86
8.0.180.0000.00816.92
8.0.170.0000.00716.81
8.0.160.0000.00716.83
8.0.150.0050.00216.73
8.0.140.0040.00416.78
8.0.130.0030.00313.34
8.0.120.0040.00416.94
8.0.110.0050.00216.88
8.0.100.0030.00516.84
8.0.90.0040.00416.76
8.0.80.0090.00616.86
8.0.70.0060.00316.74
8.0.60.0030.00316.70
8.0.50.0040.00416.95
8.0.30.0120.00717.03
8.0.20.0080.01017.40
8.0.10.0000.00716.86
8.0.00.0260.01416.88
7.4.330.0000.00615.00
7.4.320.0030.00316.40
7.4.300.0040.00416.42
7.4.290.0050.00216.51
7.4.280.0030.00316.62
7.4.270.0080.00016.49
7.4.260.0000.00513.27
7.4.250.0000.00716.52
7.4.240.0010.00616.49
7.4.230.0030.00316.66
7.4.220.0070.01116.56
7.4.210.0110.00916.54
7.4.200.0070.00016.53
7.4.190.0000.00816.64
7.4.160.0160.00616.32
7.4.150.0090.00917.40
7.4.140.0090.00917.86
7.4.130.0090.01016.42
7.4.120.0100.01016.55
7.4.110.0060.01216.50
7.4.100.0050.01916.37
7.4.90.0140.00416.37
7.4.80.0090.00919.39
7.4.70.0070.01316.31
7.4.60.0060.01016.34
7.4.50.0060.00316.27
7.4.40.0060.00622.77
7.4.30.0100.00616.37
7.4.00.0100.00715.13
7.3.330.0000.00512.99
7.3.320.0000.00513.00
7.3.310.0030.00316.20
7.3.300.0000.00716.17
7.3.290.0110.00316.21
7.3.280.0130.00316.23
7.3.270.0090.01317.40
7.3.260.0100.00716.21
7.3.250.0120.00816.53
7.3.240.0060.01216.53
7.3.230.0170.00616.39
7.3.210.0130.00616.36
7.3.200.0120.00919.39
7.3.190.0060.01216.41
7.3.180.0060.01016.39
7.3.170.0120.00316.33
7.3.160.0040.01216.45
7.3.120.0090.00714.94
7.3.110.0030.01514.76
7.3.100.0030.00914.79
7.3.90.0070.00314.66
7.3.80.0070.01014.96
7.3.70.0090.00614.77
7.3.60.0070.00714.78
7.3.50.0030.00714.43
7.3.40.0060.01014.59
7.3.30.0030.01514.88
7.3.20.0040.01016.66
7.3.10.0070.00716.38
7.3.00.0070.00516.57
7.2.330.0090.00916.63
7.2.320.0120.00816.68
7.2.310.0060.01216.40
7.2.300.0070.01016.57
7.2.290.0090.00616.69
7.2.250.0150.00415.04
7.2.240.0060.01214.91
7.2.230.0130.00014.88
7.2.220.0070.00715.29
7.2.210.0060.00915.21
7.2.200.0060.00614.94
7.2.190.0060.00915.00
7.2.180.0090.00614.92
7.2.170.0070.01114.83
7.2.130.0000.01116.93
7.2.120.0090.00316.88
7.2.110.0070.00716.91
7.2.100.0060.00716.64
7.2.90.0070.00716.68
7.2.80.0120.00316.76
7.2.70.0070.00716.93
7.2.60.0050.00616.92
7.2.50.0000.01416.60
7.2.40.0040.00816.74
7.2.30.0000.01316.74
7.2.20.0060.00316.76
7.2.10.0070.00416.79
7.2.00.0060.00618.08
7.1.330.0060.00615.85
7.1.320.0070.00715.96
7.1.310.0030.00615.58
7.1.300.0060.00315.69
7.1.290.0090.00615.84
7.1.280.0040.00815.87
7.1.270.0060.00615.44
7.1.260.0100.00315.61
7.1.250.0030.00615.61
7.1.240.0090.00015.85
7.1.230.0000.01115.56
7.1.220.0000.01115.94
7.1.210.0030.00615.89
7.1.200.0080.00515.83
7.1.190.0000.00815.64
7.1.180.0040.00715.94
7.1.170.0000.01015.58
7.1.160.0070.00715.74
7.1.150.0000.01015.65
7.1.140.0040.00715.61
7.1.130.0040.00815.83
7.1.120.0070.00415.90
7.1.110.0030.00915.86
7.1.100.0060.00517.03
7.1.90.0070.00415.91
7.1.80.0070.00415.92
7.1.70.0040.00616.59
7.1.60.0080.00617.58
7.1.50.0030.01316.29
7.1.40.0030.00716.03
7.1.30.0030.00715.89
7.1.20.0040.01115.91
7.1.10.0030.00615.61
7.1.00.0050.02319.17
7.0.330.0060.00315.36
7.0.320.0050.00515.45
7.0.310.0080.00814.93
7.0.300.0040.00715.02
7.0.290.0110.00015.32
7.0.280.0040.00415.37
7.0.270.0030.00615.28
7.0.260.0050.00315.27
7.0.250.0110.00015.52
7.0.240.0040.00715.03
7.0.230.0060.00315.36
7.0.220.0000.01215.39
7.0.210.0060.00315.30
7.0.200.0000.00816.11
7.0.190.0090.00015.30
7.0.180.0050.00515.36
7.0.170.0030.00615.50
7.0.160.0030.01015.49
7.0.150.0070.00315.60
7.0.140.0100.03518.70
7.0.130.0000.00715.57
7.0.120.0070.00715.55
7.0.110.0030.00315.34
7.0.100.0000.01215.59
7.0.90.0300.03617.76
7.0.80.0290.03217.62
7.0.70.0290.04417.73
7.0.60.0350.04017.61
7.0.50.0380.03718.04
7.0.40.0070.04416.82
7.0.30.0050.04316.83
7.0.20.0050.05016.87
7.0.10.0080.03016.79
7.0.00.0100.02716.79
5.6.380.0080.00314.45
5.6.370.0100.00014.23
5.6.360.0030.00914.33
5.6.350.0030.01014.21
5.6.340.0070.00714.34
5.6.330.0030.00713.98
5.6.320.0070.00414.55
5.6.310.0030.00614.43
5.6.300.0080.00314.46
5.6.290.0040.00714.39
5.6.280.0060.03517.42
5.6.270.0000.01314.34
5.6.260.0040.01114.29
5.6.250.0040.00814.27
5.6.240.0070.04217.67
5.6.230.0030.04717.43
5.6.220.0030.03417.56
5.6.210.0040.02417.40
5.6.200.0080.04017.70
5.6.190.0020.04817.74
5.6.180.0070.04117.68
5.6.170.0080.04517.58
5.6.160.0060.04417.63
5.6.150.0040.04217.54
5.6.140.0070.04717.76
5.6.130.0100.03217.76
5.6.120.0030.03917.67
5.6.110.0070.04417.70
5.6.100.0060.02517.62
5.6.90.0050.03117.78
5.6.80.0060.03617.41
5.6.70.0090.02917.33
5.6.60.0130.03817.26
5.6.50.0060.04117.24
5.6.40.0120.02517.38
5.6.30.0050.04417.22
5.6.20.0030.02717.17
5.6.10.0070.02717.20
5.6.00.0050.04517.31
5.5.380.0080.04015.82
5.5.370.0060.04115.70
5.5.360.0070.04015.87
5.5.350.0080.04015.73
5.5.340.0030.04216.09
5.5.330.0020.04115.98
5.5.320.0100.02715.88
5.5.310.0050.03015.89
5.5.300.0100.03815.90
5.5.290.0090.04015.83
5.5.280.0050.02215.93
5.5.270.0000.04415.96
5.5.260.0130.03915.89
5.5.250.0060.02315.88
5.5.240.0090.02715.57
5.5.230.0030.03515.71
5.5.220.0070.02515.45
5.5.210.0050.02715.54
5.5.200.0090.03615.58
5.5.190.0100.03415.51
5.5.180.0090.03815.56
5.5.170.0000.00611.01
5.5.160.0030.04515.65
5.5.150.0060.04115.59
5.5.140.0060.02815.75
5.5.130.0050.03615.56
5.5.120.0020.03515.65
5.5.110.0090.03915.59
5.5.100.0030.04015.65
5.5.90.0050.04115.48
5.5.80.0050.04415.49
5.5.70.0060.03915.48
5.5.60.0090.01815.52
5.5.50.0030.03415.61
5.5.40.0040.02915.64
5.5.30.0040.04315.54
5.5.20.0080.04015.55
5.5.10.0020.02615.55
5.5.00.0040.02715.46
5.4.450.0090.02015.24
5.4.440.0050.04415.10
5.4.430.0020.03115.32
5.4.420.0070.03815.15
5.4.410.0070.03615.06
5.4.400.0030.04215.06
5.4.390.0060.02515.13
5.4.380.0070.02814.89
5.4.370.0050.03315.00
5.4.360.0030.03514.89
5.4.350.0010.03315.00
5.4.340.0070.04114.98
5.4.330.0000.00710.90
5.4.320.0030.03215.01
5.4.310.0070.02315.04
5.4.300.0120.03514.98
5.4.290.0030.04314.85
5.4.280.0080.04014.93
5.4.270.0030.03314.98
5.4.260.0050.04214.97
5.4.250.0050.02414.96
5.4.240.0090.03814.93
5.4.230.0080.02315.06
5.4.220.0050.04014.96
5.4.210.0050.02514.84
5.4.200.0190.03315.04
5.4.190.0100.03514.96
5.4.180.0030.03214.96
5.4.170.0030.04314.97
5.4.160.0040.02614.93
5.4.150.0040.04614.89
5.4.140.0000.04013.59
5.4.130.0060.02013.56
5.4.120.0150.03013.48
5.4.110.0080.03213.60
5.4.100.0050.03513.63
5.4.90.0080.03613.58
5.4.80.0090.02813.72
5.4.70.0080.03513.73
5.4.60.0050.02313.63
5.4.50.0070.02713.59
5.4.40.0050.03313.71
5.4.30.0070.04013.65
5.4.20.0050.03713.59
5.4.10.0070.03713.54
5.4.00.0080.03313.33
5.3.290.0050.04012.77
5.3.280.0100.02512.74
5.3.270.0050.04312.75
5.3.260.0050.03512.68
5.3.250.0040.03112.74
5.3.240.0030.02812.68
5.3.230.0050.02512.74
5.3.220.0030.03112.73
5.3.210.0080.02212.73
5.3.200.0070.02612.74
5.3.190.0050.04212.71
5.3.180.0030.04312.70
5.3.170.0060.03812.70
5.3.160.0050.01812.66
5.3.150.0050.03812.73
5.3.140.0030.03912.64
5.3.130.0030.03912.69
5.3.120.0030.02612.73
5.3.110.0060.01812.65
5.3.100.0030.04112.46
5.3.90.0020.04012.38
5.3.80.0080.03412.44
5.3.70.0020.04312.44
5.3.60.0070.03512.42
5.3.50.0060.04012.30
5.3.40.0150.03012.40
5.3.30.0030.03912.29
5.3.20.0070.03612.22
5.3.10.0080.03512.27
5.3.00.0050.03812.26
5.2.170.0050.03011.04
5.2.160.0030.03311.03
5.2.150.0040.02611.04
5.2.140.0040.02010.98
5.2.130.0030.02611.01
5.2.120.0030.01810.99
5.2.110.0030.02510.92
5.2.100.0050.03210.91
5.2.90.0020.03310.91
5.2.80.0040.03511.02
5.2.70.0020.02910.91
5.2.60.0020.03610.93
5.2.50.0030.02210.98
5.2.40.0080.01310.92
5.2.30.0050.01510.93
5.2.20.0070.02810.94
5.2.10.0020.02810.90
5.2.00.0020.03110.87
5.1.60.0050.02610.47
5.1.50.0010.02610.48
5.1.40.0000.02210.38
5.1.30.0050.02710.58
5.1.20.0020.02110.66
5.1.10.0000.02910.40
5.1.00.0020.02910.49
5.0.50.0000.0279.74
5.0.40.0050.0189.67
5.0.30.0040.0359.57
5.0.20.0040.0189.47
5.0.10.0080.0209.53
5.0.00.0020.0359.45
4.4.90.0000.0119.07
4.4.80.0020.0129.07
4.4.70.0040.0179.07
4.4.60.0030.0149.07
4.4.50.0040.0179.07
4.4.40.0020.0299.07
4.4.30.0020.0199.07
4.4.20.0020.0179.07
4.4.10.0030.0189.07
4.4.00.0020.0279.07
4.3.110.0000.0179.07
4.3.100.0030.0199.07
4.3.90.0000.0209.07
4.3.80.0030.0229.07
4.3.70.0040.0109.07
4.3.60.0080.0069.07
4.3.50.0000.0139.07
4.3.40.0060.0209.07
4.3.30.0000.0219.07
4.3.20.0020.0159.07
4.3.10.0000.0179.07
4.3.00.0030.0189.07

preferences:
48.56 ms | 400 KiB | 5 Q