3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode('this is some \\ string field "');

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)
8.3.60.0120.00616.49
8.3.50.0140.00016.36
8.3.40.0120.00318.75
8.3.30.0100.00718.43
8.3.20.0080.00018.61
8.3.10.0070.00020.04
8.3.00.0030.00517.79
8.2.180.0100.01016.32
8.2.170.0180.00022.96
8.2.160.0140.00319.17
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00020.94
8.2.120.0050.00326.35
8.2.110.0040.00719.39
8.2.100.0080.00417.91
8.2.90.0000.00719.09
8.2.80.0080.00017.97
8.2.70.0080.00017.50
8.2.60.0060.00617.78
8.2.50.0050.00318.10
8.2.40.0040.00422.32
8.2.30.0080.00020.49
8.2.20.0050.00217.65
8.2.10.0000.00717.98
8.2.00.0000.00817.92
8.1.280.0140.00325.92
8.1.270.0000.00723.84
8.1.260.0040.00428.09
8.1.250.0080.00028.09
8.1.240.0090.00023.92
8.1.230.0070.00319.06
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0030.00617.10
8.1.190.0090.00017.10
8.1.180.0040.00418.10
8.1.170.0000.00718.96
8.1.160.0030.00518.89
8.1.150.0040.00418.80
8.1.140.0000.00819.43
8.1.130.0030.00317.65
8.1.120.0040.00417.23
8.1.110.0040.00417.27
8.1.100.0040.00417.24
8.1.90.0000.00817.38
8.1.80.0020.00517.24
8.1.70.0040.00417.38
8.1.60.0040.00417.34
8.1.50.0080.00017.43
8.1.40.0000.00817.26
8.1.30.0040.00417.35
8.1.20.0040.00417.43
8.1.10.0020.00517.43
8.1.00.0050.00217.26
8.0.300.0070.00018.77
8.0.290.0060.00316.58
8.0.280.0070.00018.37
8.0.270.0000.00717.18
8.0.260.0060.00017.05
8.0.250.0000.00716.85
8.0.240.0000.00716.77
8.0.230.0030.00316.69
8.0.220.0040.00416.74
8.0.210.0070.00016.75
8.0.200.0000.00816.80
8.0.190.0030.00616.72
8.0.180.0000.00716.79
8.0.170.0030.00516.80
8.0.160.0000.00816.85
8.0.150.0070.00016.74
8.0.140.0000.00716.62
8.0.130.0030.00313.24
8.0.120.0050.00316.81
8.0.110.0000.00716.64
8.0.100.0030.00516.71
8.0.90.0030.00316.73
8.0.80.0090.00616.74
8.0.70.0070.00016.65
8.0.60.0040.00416.64
8.0.50.0040.00416.76
8.0.30.0060.01317.00
8.0.20.0110.01017.40
8.0.10.0000.00716.82
8.0.00.0130.00616.56
7.4.330.0000.00515.08
7.4.320.0000.00616.34
7.4.300.0030.00316.25
7.4.290.0030.00516.39
7.4.280.0050.00616.46
7.4.270.0030.00316.31
7.4.260.0030.00316.39
7.4.250.0040.00416.32
7.4.240.0000.00716.36
7.4.230.0030.00316.48
7.4.220.0030.01516.41
7.4.210.0070.00916.47
7.4.200.0040.00416.24
7.4.160.0120.00316.48
7.4.150.0090.00917.40
7.4.140.0080.00817.86
7.4.130.0120.00916.28
7.4.120.0060.01416.37
7.4.110.0100.00616.38
7.4.100.0120.01216.54
7.4.90.0130.00516.34
7.4.80.0120.00619.39
7.4.70.0130.00316.21
7.4.60.0130.00316.35
7.4.50.0070.00716.34
7.4.40.0070.01116.29
7.4.30.0040.01216.41
7.4.10.0040.01114.75
7.4.00.0060.01014.71
7.3.330.0030.00312.87
7.3.320.0030.00312.93
7.3.310.0030.00316.15
7.3.300.0030.00316.12
7.3.290.0040.00416.16
7.3.280.0120.00616.13
7.3.270.0130.00417.40
7.3.260.0030.01316.41
7.3.250.0130.00816.17
7.3.240.0080.01216.42
7.3.230.0070.01116.39
7.3.210.0150.00316.08
7.3.200.0120.00319.39
7.3.190.0120.00416.39
7.3.180.0100.00616.20
7.3.170.0120.00616.40
7.3.160.0080.00816.00
7.3.130.0080.01114.58
7.3.120.0070.00714.45
7.3.110.0060.00914.82
7.3.100.0040.01214.29
7.3.90.0030.01014.55
7.3.80.0000.01014.39
7.3.70.0120.00314.57
7.3.60.0080.00814.36
7.3.50.0100.00314.50
7.3.40.0000.01814.49
7.3.30.0030.01014.41
7.3.20.0070.01016.46
7.3.10.0060.00916.32
7.3.00.0090.00616.49
7.2.330.0140.00316.50
7.2.320.0100.01416.63
7.2.310.0080.00816.53
7.2.300.0070.01016.32
7.2.290.0090.01316.37
7.2.260.0070.01014.79
7.2.250.0030.01314.57
7.2.240.0030.01414.74
7.2.230.0070.01014.93
7.2.220.0100.01014.52
7.2.210.0060.00314.57
7.2.200.0060.00914.71
7.2.190.0030.01014.85
7.2.180.0080.00814.90
7.2.170.0060.01214.83
7.2.160.0060.00614.71
7.2.150.0000.01116.73
7.2.140.0030.00916.27
7.2.130.0070.00716.79
7.2.120.0070.00716.62
7.2.110.0060.00616.84
7.2.100.0000.01316.54
7.2.90.0040.01116.80
7.2.80.0090.00316.62
7.2.70.0090.00616.64
7.2.60.0050.00916.54
7.2.50.0090.00316.91
7.2.40.0100.00616.30
7.2.30.0090.00916.64
7.2.20.0140.00016.58
7.2.10.0080.00416.83
7.2.00.0030.00917.76
7.1.330.0040.01115.73
7.1.320.0130.00315.66
7.1.310.0030.01015.64
7.1.300.0000.01915.36
7.1.290.0140.00415.38
7.1.280.0030.00915.28
7.1.270.0040.00815.67
7.1.260.0070.00715.79
7.1.250.0130.00315.68
7.1.240.0070.00715.36
7.1.230.0030.01015.24
7.1.220.0000.01615.42
7.1.210.0000.01315.55
7.1.200.0060.00815.65
7.1.190.0060.00615.36
7.1.180.0000.01315.54
7.1.170.0070.00715.49
7.1.160.0040.01215.40
7.1.150.0000.01715.81
7.1.140.0040.01115.64
7.1.130.0030.01115.64
7.1.120.0030.01215.36
7.1.110.0070.00715.38
7.1.100.0040.00716.51
7.1.90.0090.00315.36
7.1.80.0040.01115.51
7.1.70.0110.00516.03
7.1.60.0090.00917.48
7.1.50.0030.01015.62
7.1.40.0060.00315.37
7.1.30.0060.00615.48
7.1.20.0040.01115.54
7.1.10.0040.00415.35
7.1.00.0040.04218.89
7.0.330.0040.00714.94
7.0.320.0000.01415.25
7.0.310.0000.01214.96
7.0.300.0030.01015.05
7.0.290.0030.01215.22
7.0.280.0100.00314.94
7.0.270.0000.01015.13
7.0.260.0040.00415.13
7.0.250.0000.01415.03
7.0.240.0030.00614.97
7.0.230.0030.01015.23
7.0.220.0040.00815.04
7.0.210.0040.01115.32
7.0.200.0450.01015.17
7.0.190.0070.00314.69
7.0.180.0080.00314.89
7.0.170.0090.00614.85
7.0.160.0060.01015.16
7.0.150.0120.00315.22
7.0.140.0030.01014.79
7.0.130.0070.00315.01
7.0.120.0030.01314.89
7.0.110.0070.00714.92
7.0.100.0000.01114.76
7.0.90.0260.04317.54
7.0.80.0180.04317.53
7.0.70.0210.02617.50
7.0.60.0250.03217.55
7.0.50.0270.04717.74
7.0.40.0060.03516.44
7.0.30.0030.03216.63
7.0.20.0070.03216.70
7.0.10.0080.04016.48
7.0.00.0030.04516.68
5.6.400.0090.00614.05
5.6.390.0070.01014.00
5.6.380.0060.00614.22
5.6.370.0100.00314.05
5.6.360.0030.01013.84
5.6.350.0040.01414.16
5.6.340.0000.01414.05
5.6.330.0130.00314.07
5.6.320.0100.00313.80
5.6.310.0000.01413.69
5.6.300.0030.01013.72
5.6.290.0060.00314.23
5.6.280.0030.04017.55
5.6.270.0110.00613.79
5.6.260.0040.00414.02
5.6.250.0060.00913.87
5.6.240.0130.03817.10
5.6.230.0050.04817.37
5.6.220.0100.02517.28
5.6.210.0050.02717.35
5.6.200.0050.04517.55
5.6.190.0150.04017.52
5.6.180.0080.04417.42
5.6.170.0060.02117.67
5.6.160.0030.04817.59
5.6.150.0030.04917.64
5.6.140.0080.04317.52
5.6.130.0080.04317.22
5.6.120.0030.04417.62
5.6.110.0090.04417.43
5.6.100.0060.03317.47
5.6.90.0080.04017.60
5.6.80.0070.03817.17
5.6.70.0080.04017.25
5.6.60.0030.04917.16
5.6.50.0060.03917.10
5.6.40.0050.04517.17
5.6.30.0090.04017.24
5.6.20.0070.03917.12
5.6.10.0070.03617.08
5.6.00.0080.03017.14
5.5.380.0030.04617.23
5.5.370.0120.04217.39
5.5.360.0050.04416.97
5.5.350.0070.04317.22
5.5.340.0070.02217.34
5.5.330.0120.04217.39
5.5.320.0100.03717.50
5.5.310.0080.04517.31
5.5.300.0080.04217.38
5.5.290.0080.04017.32
5.5.280.0080.02517.38
5.5.270.0060.03117.42
5.5.260.0070.04317.36
5.5.250.0070.04717.34
5.5.240.0070.02317.02
5.5.230.0050.04417.20
5.5.220.0060.04617.11
5.5.210.0030.04817.04
5.5.200.0100.04016.97
5.5.190.0030.03216.92
5.5.180.0070.03317.10
5.5.170.0070.00713.88
5.5.160.0090.02516.93
5.5.150.0050.02617.02
5.5.140.0040.04417.18
5.5.130.0040.03517.03
5.5.120.0050.02717.05
5.5.110.0060.04217.03
5.5.100.0070.02717.18
5.5.90.0030.02716.95
5.5.80.0030.02317.03
5.5.70.0080.02016.86
5.5.60.0030.02316.83
5.5.50.0060.01916.91
5.5.40.0020.02517.10
5.5.30.0030.02417.03
5.5.20.0060.01817.04
5.5.10.0020.02616.93
5.5.00.0070.02216.99

preferences:
51.16 ms | 401 KiB | 5 Q