3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump('JSON_ERROR_DEPTH' . ' : ' . JSON_ERROR_DEPTH); var_dump('JSON_ERROR_STATE_MISMATCH' . ' : ' . JSON_ERROR_STATE_MISMATCH); var_dump('JSON_ERROR_CTRL_CHAR' . ' : ' . JSON_ERROR_CTRL_CHAR); var_dump('JSON_ERROR_SYNTAX' . ' : ' . JSON_ERROR_SYNTAX); var_dump('JSON_ERROR_UTF8' . ' : ' . JSON_ERROR_UTF8); $a = json_encode('wrong json'); var_dump(json_last_error()); var_dump(json_last_error_msg()); /*switch (json_last_error()) { case JSON_ERROR_DEPTH: $error = 'Maximum stack depth exceeded'; break; case JSON_ERROR_STATE_MISMATCH: $error = 'Underflow or the modes mismatch'; break; case JSON_ERROR_CTRL_CHAR: $error = 'Unexpected control character found'; break; case JSON_ERROR_SYNTAX: $error = 'Syntax error, malformed JSON'; break; case JSON_ERROR_UTF8: $error = 'Malformed UTF-8 characters, possibly incorrectly encoded'; break; default: $error = 'Unknown error'; break; } var_dump($error);*/

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)
8.3.60.0090.00918.30
8.3.50.0100.01222.02
8.3.40.0130.00318.54
8.3.30.0140.00018.98
8.3.20.0070.00020.20
8.3.10.0040.00423.46
8.3.00.0040.00420.79
8.2.180.0050.01018.31
8.2.170.0100.01022.96
8.2.160.0070.00721.97
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.00526.16
8.2.120.0000.00719.43
8.2.110.0070.00319.38
8.2.100.0060.00617.78
8.2.90.0000.00817.91
8.2.80.0030.00619.08
8.2.70.0000.00817.66
8.2.60.0060.00617.79
8.2.50.0000.00818.10
8.2.40.0070.00018.99
8.2.30.0030.00519.18
8.2.20.0000.00817.52
8.2.10.0070.00017.98
8.2.00.0040.00417.53
8.1.280.0040.01125.92
8.1.270.0070.00318.82
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00022.03
8.1.230.0060.00620.84
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0040.00417.11
8.1.180.0000.00818.10
8.1.170.0040.00418.51
8.1.160.0040.00418.67
8.1.150.0050.00218.79
8.1.140.0050.00217.43
8.1.130.0030.00317.77
8.1.120.0070.00017.40
8.1.110.0000.00817.41
8.1.100.0040.00417.34
8.1.90.0000.00717.35
8.1.80.0000.00817.44
8.1.70.0030.00517.30
8.1.60.0030.00617.52
8.1.50.0060.00317.39
8.1.40.0060.00317.32
8.1.30.0000.00917.59
8.1.20.0020.00517.50
8.1.10.0040.00417.40
8.1.00.0040.00417.36
8.0.300.0070.00020.16
8.0.290.0050.00516.63
8.0.280.0000.00718.40
8.0.270.0040.00417.10
8.0.260.0050.00217.10
8.0.250.0000.00716.84
8.0.240.0000.00716.90
8.0.230.0030.00316.77
8.0.220.0070.00016.87
8.0.210.0030.00316.69
8.0.200.0000.00616.89
8.0.190.0040.00416.89
8.0.180.0000.00716.77
8.0.170.0040.00416.75
8.0.160.0030.00516.68
8.0.150.0040.00416.78
8.0.140.0030.00316.77
8.0.130.0060.00013.30
8.0.120.0040.00416.76
8.0.110.0040.00416.84
8.0.100.0000.00716.81
8.0.90.0040.00416.85
8.0.80.0120.00416.80
8.0.70.0000.00816.83
8.0.60.0050.00216.72
8.0.50.0070.00016.67
8.0.30.0120.01216.87
8.0.20.0130.00917.40
8.0.10.0070.00016.82
8.0.00.0100.00716.76
7.4.330.0020.00315.03
7.4.320.0030.00316.46
7.4.300.0000.00616.48
7.4.290.0000.00716.44
7.4.280.0080.00316.52
7.4.270.0000.00716.48
7.4.260.0040.00416.40
7.4.250.0000.00716.49
7.4.240.0030.00316.43
7.4.230.0000.00716.57
7.4.220.0120.00616.39
7.4.210.0120.00916.56
7.4.200.0030.00316.24
7.4.160.0080.00816.41
7.4.150.0060.01217.40
7.4.140.0030.01317.86
7.4.130.0100.00716.38
7.4.120.0080.00916.38
7.4.110.0080.00916.35
7.4.100.0210.00316.48
7.4.90.0000.01716.31
7.4.80.0120.00919.39
7.4.70.0040.01516.36
7.4.60.0040.01416.45
7.4.50.0040.00016.42
7.4.40.0080.00816.51
7.4.30.0120.00416.35
7.4.10.0150.00414.74
7.4.00.0100.00614.83
7.3.330.0000.00512.97
7.3.320.0000.00512.98
7.3.310.0000.00716.12
7.3.300.0000.00716.13
7.3.290.0080.00716.10
7.3.280.0110.00616.18
7.3.270.0170.00617.40
7.3.260.0040.01516.36
7.3.250.0070.01216.37
7.3.240.0160.00616.12
7.3.230.0030.01916.39
7.3.210.0130.00316.24
7.3.200.0080.01119.39
7.3.190.0100.00716.30
7.3.180.0090.00616.28
7.3.170.0060.01016.33
7.3.160.0070.01016.14
7.3.130.0030.01314.91
7.3.120.0090.00714.72
7.3.110.0100.00714.65
7.3.100.0060.00614.71
7.3.90.0050.00814.74
7.3.80.0050.01014.63
7.3.70.0060.00514.62
7.3.60.0060.00614.67
7.3.50.0060.00914.61
7.3.40.0090.00414.55
7.3.30.0060.00614.79
7.3.20.0090.00716.53
7.3.10.0060.00716.49
7.3.00.0020.01116.55
7.2.330.0030.01616.60
7.2.320.0150.00316.56
7.2.310.0080.00816.27
7.2.300.0030.01316.47
7.2.290.0140.00416.60
7.2.260.0090.00914.77
7.2.250.0060.01314.85
7.2.240.0080.00814.72
7.2.230.0050.01015.00
7.2.220.0070.00614.99
7.2.210.0070.00814.85
7.2.200.0060.00814.83
7.2.190.0090.00714.86
7.2.180.0060.00814.86
7.2.170.0050.01014.84
7.2.160.0130.00315.01
7.2.150.0100.00316.58
7.2.140.0030.01316.61
7.2.130.0030.01416.55
7.2.120.0090.00716.50
7.2.110.0080.00316.71
7.2.100.0000.01416.67
7.2.90.0040.01116.84
7.2.80.0110.00416.65
7.2.70.0060.00316.75
7.2.60.0020.00916.93
7.2.50.0060.00616.71
7.2.40.0090.00616.92
7.2.30.0030.01416.70
7.2.20.0070.01016.59
7.2.10.0000.01116.52
7.2.00.0020.01417.96
7.1.330.0070.00815.61
7.1.320.0050.00915.57
7.1.310.0050.00615.73
7.1.300.0060.00715.56
7.1.290.0070.00715.54
7.1.280.0060.00515.68
7.1.270.0030.01115.58
7.1.260.0030.00915.58
7.1.250.0030.01215.57
7.1.240.0000.01615.34
7.1.230.0070.00415.51
7.1.220.0000.00815.51
7.1.210.0080.00815.74
7.1.200.0040.00615.64
7.1.190.0000.01215.72
7.1.180.0050.00515.50
7.1.170.0000.01515.76
7.1.160.0000.01115.35
7.1.150.0040.01115.39
7.1.140.0090.00015.76
7.1.130.0130.00015.59
7.1.120.0030.01015.56
7.1.110.0110.00315.42
7.1.100.0070.00616.80
7.1.90.0030.01015.69
7.1.80.0070.01115.60
7.1.70.0080.00516.37
7.1.60.0060.01117.40
7.1.50.0090.00516.23
7.1.40.0130.00315.59
7.1.30.0030.01215.69
7.1.20.0090.00915.48
7.1.10.0120.00615.62
7.1.00.0000.04719.03
7.0.330.0070.00715.29
7.0.320.0100.00315.27
7.0.310.0040.00715.49
7.0.300.0080.00415.14
7.0.290.0060.00315.52
7.0.280.0070.00715.06
7.0.270.0030.01015.06
7.0.260.0100.00315.34
7.0.250.0030.01015.31
7.0.240.0000.01214.98
7.0.230.0030.01015.32
7.0.220.0030.01015.35
7.0.210.0080.00415.37
7.0.200.0030.00615.90
7.0.190.0030.01015.27
7.0.180.0040.00415.38
7.0.170.0070.00715.38
7.0.160.0030.00915.03
7.0.150.0090.00015.24
7.0.140.0050.02018.58
7.0.130.0040.01215.29
7.0.120.0080.00815.42
7.0.110.0110.00415.20
7.0.100.0040.01215.23
7.0.90.0280.03117.54
7.0.80.0330.04817.49
7.0.70.0280.02617.50
7.0.60.0340.03717.71
7.0.50.0280.02717.87
7.0.40.0070.04316.70
7.0.30.0130.03716.74
7.0.20.0070.03016.66
7.0.10.0100.03916.60
7.0.00.0080.04316.57
5.6.400.0040.00414.50
5.6.390.0090.00014.53
5.6.380.0020.01114.24
5.6.370.0040.00714.09
5.6.360.0070.00413.92
5.6.350.0040.00714.55
5.6.340.0000.01414.52
5.6.330.0040.01114.46
5.6.320.0070.00713.79
5.6.310.0070.00714.18
5.6.300.0070.00314.43
5.6.290.0000.01414.50
5.6.280.0060.04017.77
5.6.270.0100.00314.16
5.6.260.0060.00614.51
5.6.250.0070.01014.06
5.6.240.0080.04017.33
5.6.230.0030.02917.35
5.6.220.0070.02117.37
5.6.210.0050.04417.52
5.6.200.0030.03417.68
5.6.190.0080.03817.54
5.6.180.0000.03717.60
5.6.170.0050.02817.50
5.6.160.0070.03617.73
5.6.150.0080.04317.63
5.6.140.0100.03317.55
5.6.130.0030.04817.63
5.6.120.0100.04417.71
5.6.110.0070.03717.55
5.6.100.0070.04417.66
5.6.90.0060.04417.63
5.6.80.0100.02317.37
5.6.70.0070.04517.25
5.6.60.0010.02617.27
5.6.50.0070.03517.31
5.6.40.0110.04317.31
5.6.30.0020.03617.19
5.6.20.0050.02017.35
5.6.10.0090.02017.07
5.6.00.0050.02217.36
5.5.380.0090.03417.31
5.5.370.0070.03617.31
5.5.360.0050.04817.21
5.5.350.0090.03517.17
5.5.340.0030.03017.70
5.5.330.0130.03517.35
5.5.320.0090.03817.40
5.5.310.0020.05217.54
5.5.300.0050.03617.56
5.5.290.0100.02717.41
5.5.280.0100.03117.51
5.5.270.0100.04217.49
5.5.260.0100.04017.33
5.5.250.0070.04317.29
5.5.240.0120.03517.25
5.5.230.0090.02217.00
5.5.220.0020.02516.94
5.5.210.0070.02517.27
5.5.200.0030.02717.03
5.5.190.0030.02617.02
5.5.180.0060.02417.09
5.5.170.0130.00314.21
5.5.160.0020.02617.13
5.5.150.0070.02217.14
5.5.140.0080.01817.04
5.5.130.0050.02117.02
5.5.120.0030.02616.97
5.5.110.0000.02617.16
5.5.100.0000.02417.02
5.5.90.0120.03017.03
5.5.80.0000.02917.04
5.5.70.0040.02216.94
5.5.60.0060.02116.91
5.5.50.0080.02317.03
5.5.40.0070.02316.88
5.5.30.0030.02317.16
5.5.20.0070.01816.95
5.5.10.0040.02517.15
5.5.00.0050.02016.99
5.4.450.0080.03815.83
5.4.440.0110.03715.83
5.4.430.0030.04515.92
5.4.420.0030.02515.82
5.4.410.0010.03915.80
5.4.400.0050.04015.72
5.4.390.0030.04215.58
5.4.380.0080.01815.70
5.4.370.0020.02615.70
5.4.360.0030.02715.75
5.4.350.0020.02415.74
5.4.340.0000.02315.66
5.4.330.0080.00412.35
5.4.320.0070.01815.79
5.4.310.0030.03015.65
5.4.300.0050.02015.64
5.4.290.0020.02215.56
5.4.280.0040.02615.62
5.4.270.0070.02015.73
5.4.260.0050.02015.80
5.4.250.0050.03515.65
5.4.240.0020.02315.58
5.4.230.0020.02315.77
5.4.220.0050.01915.79
5.4.210.0030.02315.58
5.4.200.0030.02015.57
5.4.190.0000.02615.62
5.4.180.0020.02215.65
5.4.170.0020.02715.70
5.4.160.0030.02115.70
5.4.150.0040.02115.70
5.4.140.0000.02414.31
5.4.130.0030.02014.21
5.4.120.0030.03614.31
5.4.110.0040.02114.28
5.4.100.0060.01514.30
5.4.90.0030.01814.29
5.4.80.0020.03614.37
5.4.70.0080.01714.27
5.4.60.0050.01614.38
5.4.50.0050.02114.33
5.4.40.0050.03214.41
5.4.30.0040.01814.37
5.4.20.0020.02014.33
5.4.10.0020.02014.38
5.4.00.0030.04014.01
5.3.290.0030.03714.65
5.3.280.0030.03714.53
5.3.270.0070.03314.57
5.3.260.0000.04014.47
5.3.250.0000.04014.56
5.3.240.0030.05314.60
5.3.230.0030.04714.57
5.3.220.0030.03714.54
5.3.210.0070.03314.42
5.3.200.0030.03014.54
5.3.190.0000.04014.39
5.3.180.0000.04014.50
5.3.170.0030.03314.55
5.3.160.0030.03714.52
5.3.150.0070.04314.56
5.3.140.0100.03014.54
5.3.130.0100.03014.41
5.3.120.0000.04014.38
5.3.110.0000.04014.41
5.3.100.0130.07314.04
5.3.90.0030.07313.93
5.3.80.0030.03713.93
5.3.70.0070.03013.99
5.3.60.0030.03713.96
5.3.50.0000.03713.93
5.3.40.0070.07013.93
5.3.30.0030.08013.88
5.3.20.0030.05713.68
5.3.10.0030.07313.50
5.3.00.0030.07713.62
5.2.170.0070.06311.19
5.2.160.0070.05710.98
5.2.150.0000.05011.11
5.2.140.0000.05711.21
5.2.130.0030.06311.08
5.2.120.0100.06010.91
5.2.110.0070.05011.16
5.2.100.0070.05011.10
5.2.90.0070.05711.06
5.2.80.0100.05711.15
5.2.70.0030.04311.14
5.2.60.0030.06311.09
5.2.50.0030.06310.85
5.2.40.0100.06011.05
5.2.30.0100.05711.04
5.2.20.0070.05711.02
5.2.10.0000.04310.82
5.2.00.0100.05010.75
5.1.60.0130.02310.06
5.1.50.0030.0539.98
5.1.40.0000.03710.04
5.1.30.0030.06010.39
5.1.20.0030.05710.39
5.1.10.0100.05310.11
5.1.00.0070.05310.14
5.0.50.0130.0409.90
5.0.40.0070.0309.90
5.0.30.0000.0639.90
5.0.20.0070.0439.90
5.0.10.0030.0339.90
5.0.00.0000.0609.90
4.4.90.0030.0339.90
4.4.80.0030.0339.90
4.4.70.0100.0279.90
4.4.60.0000.0279.90
4.4.50.0000.0379.90
4.4.40.0000.0439.90
4.4.30.0000.0239.90
4.4.20.0070.0309.90
4.4.10.0070.0279.90
4.4.00.0000.0479.90
4.3.110.0070.0309.90
4.3.100.0000.0379.90
4.3.90.0100.0279.90
4.3.80.0030.0339.90
4.3.70.0030.0279.90
4.3.60.0170.0209.90
4.3.50.0000.0379.90
4.3.40.0030.0479.90
4.3.30.0000.0309.90
4.3.20.0000.0379.90
4.3.10.0070.0309.90
4.3.00.0030.0339.90

preferences:
58.31 ms | 401 KiB | 5 Q