3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isJson($string) { json_decode($string); return (json_last_error() == JSON_ERROR_NONE); } $a=['arraiii'=>['dentro'=>234]]; echo isJson($a);

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)
8.3.60.0120.00318.68
8.3.50.0120.00321.08
8.3.40.0070.00718.70
8.3.30.0030.01020.29
8.3.20.0040.00420.34
8.3.10.0040.00421.84
8.3.00.0000.00722.40
8.2.180.0110.00416.75
8.2.170.0110.00722.96
8.2.160.0130.00022.13
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00020.93
8.2.110.0040.00419.31
8.2.100.0120.00617.65
8.2.90.0030.00619.08
8.2.80.0000.00819.34
8.2.70.0050.00317.75
8.2.60.0030.00518.04
8.2.50.0080.00018.07
8.2.40.0000.00818.09
8.2.30.0000.00719.44
8.2.20.0040.00417.53
8.2.10.0050.00317.62
8.2.00.0000.00817.75
8.1.280.0100.00625.92
8.1.270.0080.00023.99
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0140.00322.34
8.1.230.0000.01120.85
8.1.220.0040.00418.77
8.1.210.0060.00319.01
8.1.200.0030.00717.36
8.1.190.0000.00817.40
8.1.180.0080.00018.10
8.1.170.0000.00818.44
8.1.160.0040.00418.88
8.1.150.0060.00318.44
8.1.140.0000.00717.44
8.1.130.0050.00317.79
8.1.120.0000.00717.47
8.1.110.0000.00717.31
8.1.100.0040.00417.42
8.1.90.0000.00717.43
8.1.80.0040.00317.28
8.1.70.0000.00717.35
8.1.60.0030.00617.45
8.1.50.0050.00317.55
8.1.40.0040.00417.50
8.1.30.0030.00617.46
8.1.20.0060.00317.55
8.1.10.0040.00417.60
8.1.00.0060.00617.46
8.0.300.0030.00319.94
8.0.290.0040.00417.05
8.0.280.0000.00818.48
8.0.270.0000.00717.18
8.0.260.0000.00716.70
8.0.250.0030.00316.85
8.0.240.0070.00016.91
8.0.230.0040.00416.93
8.0.220.0040.00416.78
8.0.210.0040.00416.79
8.0.200.0000.00716.88
8.0.190.0040.00416.92
8.0.180.0070.00316.82
8.0.170.0030.00616.81
8.0.160.0040.00416.83
8.0.150.0000.00816.74
8.0.140.0040.00416.76
8.0.130.0030.00313.28
8.0.120.0080.00016.81
8.0.110.0000.00716.88
8.0.100.0030.00516.90
8.0.90.0090.00016.86
8.0.80.0040.01116.88
8.0.70.0000.00917.01
8.0.60.0050.00216.81
8.0.50.0000.00816.96
8.0.30.0080.01117.08
8.0.20.0150.01017.40
8.0.10.0040.00416.84
8.0.00.0090.01116.85
7.4.330.0030.00315.00
7.4.320.0040.00416.58
7.4.300.0030.00316.37
7.4.290.0050.00316.64
7.4.280.0000.00716.54
7.4.270.0040.00416.63
7.4.260.0000.00613.29
7.4.250.0080.00016.55
7.4.240.0050.00216.49
7.4.230.0000.00716.57
7.4.220.0090.00916.57
7.4.210.0080.00616.51
7.4.200.0030.00316.70
7.4.190.0070.00016.73
7.4.160.0090.01216.38
7.4.150.0040.01417.40
7.4.140.0090.01117.86
7.4.130.0130.00716.43
7.4.120.0090.01216.61
7.4.110.0170.00716.63
7.4.100.0200.00316.51
7.4.90.0050.01416.58
7.4.80.0060.01219.39
7.4.70.0080.00816.50
7.4.60.0110.00816.51
7.4.50.0000.00416.19
7.4.40.0060.00622.77
7.4.30.0070.01116.75
7.4.00.0070.00715.23
7.3.330.0000.00513.30
7.3.320.0000.00513.11
7.3.310.0000.00716.20
7.3.300.0070.00016.30
7.3.290.0060.01016.32
7.3.280.0110.00516.28
7.3.270.0120.00617.40
7.3.260.0060.01216.34
7.3.250.0120.00616.44
7.3.240.0170.00616.59
7.3.230.0130.00316.39
7.3.210.0090.00916.16
7.3.200.0160.00619.39
7.3.190.0090.01216.52
7.3.180.0060.01016.38
7.3.170.0060.01016.27
7.3.160.0030.01316.39
7.3.120.0070.01014.77
7.2.330.0090.00916.53
7.2.320.0060.01216.72
7.2.310.0000.01616.41
7.2.300.0130.01016.67
7.2.290.0100.01016.39
7.2.80.0120.00016.68
7.2.60.0050.00516.87
7.2.00.0070.01119.47
7.1.200.0000.00915.47
7.1.100.0100.01418.23
7.1.70.0070.00717.13
7.1.60.0070.01719.32
7.1.50.0090.01316.84
7.1.00.0070.03022.37
7.0.200.0030.00316.91
7.0.140.0030.07722.12
7.0.60.0070.06719.90
7.0.50.0030.08017.96
7.0.40.0170.08320.30
7.0.30.0230.04020.23
7.0.20.0270.03720.24
7.0.10.0270.05720.09
7.0.00.0170.06720.06
5.6.280.0000.07721.02
5.6.210.0030.04320.61
5.6.200.0070.04318.30
5.6.190.0130.07720.40
5.6.180.0330.06720.67
5.6.170.0200.04320.47
5.6.160.0070.08320.44
5.6.150.0030.09018.23
5.6.140.0070.05018.17
5.6.130.0100.06718.13
5.6.120.0000.09720.98
5.6.110.0070.08320.99
5.6.100.0100.08721.14
5.6.90.0030.04020.97
5.6.80.0030.05720.51
5.6.70.0130.04020.48
5.5.350.0130.07320.27
5.5.340.0070.06718.03
5.5.330.0070.04020.43
5.5.320.0430.06320.36
5.5.310.0200.04720.27
5.5.300.0070.06018.04
5.5.290.0070.08317.95
5.5.280.0070.05320.80
5.5.270.0100.08320.96
5.5.260.0070.07320.73
5.5.250.0070.06720.68
5.5.240.0130.07020.37
5.4.450.3370.05019.43
5.4.440.0100.04319.37
5.4.430.0400.03719.52
5.4.420.2470.03719.42
5.4.410.3330.04019.13
5.4.400.0030.04019.25
5.4.390.4000.03718.97
5.4.380.3770.04018.95
5.4.370.3770.04019.12
5.4.360.3770.03719.04
5.4.350.3600.03719.20
5.4.340.3470.04019.14
5.4.320.3530.03719.21
5.4.310.3670.04019.10
5.4.300.3200.04018.93
5.4.290.3930.03719.09
5.4.280.3700.04018.94
5.4.270.4030.03018.98
5.4.260.3270.03718.93
5.4.250.3670.04319.09
5.4.240.3030.02719.23
5.4.230.2600.04019.04
5.4.220.3270.03719.13
5.4.210.3870.04019.14
5.4.200.3730.04019.18
5.4.190.3370.03319.00
5.4.180.3730.04018.94
5.4.170.3700.03719.14
5.4.160.3700.03719.09
5.4.150.5270.02719.16
5.4.140.3500.04016.41
5.4.130.3730.03716.39
5.4.120.3500.03016.50
5.4.110.2770.03716.64
5.4.100.3830.03016.45
5.4.90.4630.03716.32
5.4.80.4230.03016.50
5.4.70.3600.03316.55
5.4.60.4330.03716.51
5.4.50.3470.04016.50
5.4.40.4430.03016.61
5.4.30.4300.03316.52
5.4.20.4300.03316.23
5.4.10.3670.03016.45
5.4.00.3300.04015.93
5.3.290.3470.04014.82
5.3.280.3500.03714.59
5.3.270.3800.03714.65
5.3.260.3730.03014.60
5.3.250.3630.04014.76
5.3.240.2100.04014.66
5.3.230.3330.04314.65
5.3.220.4000.04014.64
5.3.210.3730.03314.48
5.3.200.3930.03714.58
5.3.190.3830.04014.74
5.3.180.4230.03314.64
5.3.170.4270.03014.57
5.3.160.4230.03714.57
5.3.150.4200.03014.56
5.3.140.2430.03014.55
5.3.130.4330.03314.57
5.3.120.4370.03014.58
5.3.110.4300.04014.46
5.3.100.3470.04014.05
5.3.90.3730.03714.03
5.3.80.4000.03314.05
5.3.70.3600.03714.00
5.3.60.3630.04013.95
5.3.50.3770.03713.83
5.3.40.3430.03013.96
5.3.30.4170.03713.95
5.3.20.3400.03013.74
5.3.10.2330.03313.71
5.3.00.2770.03013.68
5.2.170.3030.03011.11
5.2.160.3430.03711.18
5.2.150.3200.03011.30
5.2.140.3970.03711.14
5.2.130.1800.03011.09
5.2.120.2030.03011.07
5.2.110.1930.02311.05
5.2.100.2430.03011.15
5.2.90.3170.03711.07
5.2.80.2730.03011.01
5.2.70.2100.02011.15
5.2.60.2400.03011.05
5.2.50.2130.02710.97
5.2.40.1470.03711.04
5.2.30.0700.02710.91
5.2.20.1970.03011.02
5.2.10.1770.02710.93
5.2.00.1800.03010.68
5.1.60.1900.02010.01
5.1.50.1170.0279.98
5.1.40.0870.02010.04
5.1.30.1100.03010.49
5.1.20.1370.03710.39
5.1.10.2000.0279.97
5.1.00.2470.02310.21
5.0.50.1000.0238.56
5.0.40.1300.0238.38
5.0.30.0500.0478.18
5.0.20.0030.0408.17
5.0.10.0000.0278.19
5.0.00.0070.0538.11
4.4.90.0770.0075.90
4.4.80.0730.0135.81
4.4.70.0330.0135.81
4.4.60.1030.0135.80
4.4.50.0800.0135.86
4.4.40.0500.0275.79
4.4.30.0970.0135.89
4.4.20.1100.0135.93
4.4.10.1270.0175.91
4.4.00.1300.0205.90
4.3.110.1500.0175.79
4.3.100.0030.0175.85
4.3.90.0030.0175.80
4.3.80.0030.0335.67
4.3.70.0030.0135.70
4.3.60.0030.0335.67
4.3.50.0030.0235.68
4.3.40.0000.0305.70
4.3.30.0230.0235.08
4.3.20.0700.0175.08
4.3.10.1030.0205.08
4.3.00.0830.0205.08

preferences:
40.21 ms | 401 KiB | 5 Q