3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'zażółć gęśla jaźń'; echo json_escape($str).PHP_EOL; echo json_escape($str, JSON_UNESCAPED_UNICODE).PHP_EOL;

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)
8.3.60.0100.01018.68
8.3.50.0120.00621.92
8.3.40.0070.00718.52
8.3.30.0120.00318.54
8.3.20.0040.00420.19
8.3.10.0080.00020.61
8.3.00.0050.00221.78
8.2.180.0220.00016.63
8.2.170.0120.00322.96
8.2.160.0030.01022.15
8.2.150.0030.00524.18
8.2.140.0070.00024.66
8.2.130.0040.00420.52
8.2.120.0040.00426.35
8.2.110.0070.00322.11
8.2.100.0080.00417.91
8.2.90.0040.00418.16
8.2.80.0000.00819.16
8.2.70.0030.00617.60
8.2.60.0060.00317.92
8.2.50.0060.00318.09
8.2.40.0040.00420.42
8.2.30.0030.00519.35
8.2.20.0070.00017.54
8.2.10.0040.00418.04
8.2.00.0000.00718.04
8.1.280.0120.00325.92
8.1.270.0110.00722.21
8.1.260.0040.00428.09
8.1.250.0060.00328.09
8.1.240.0090.00023.98
8.1.230.0100.00020.89
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0050.00517.35
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0060.00318.36
8.1.160.0040.00420.68
8.1.150.0060.00318.74
8.1.140.0040.00419.42
8.1.130.0030.00317.63
8.1.120.0040.00317.28
8.1.110.0040.00417.33
8.1.100.0030.00517.46
8.1.90.0070.00017.44
8.1.80.0080.00017.38
8.1.70.0070.00017.36
8.1.60.0040.00417.39
8.1.50.0080.00017.41
8.1.40.0040.00417.50
8.1.30.0080.00017.68
8.1.20.0000.00717.40
8.1.10.0000.00817.57
8.1.00.0070.00717.43
8.0.300.0000.00822.02
8.0.290.0060.00316.63
8.0.280.0000.00818.24
8.0.270.0030.00317.18
8.0.260.0000.00617.05
8.0.250.0000.00616.96
8.0.240.0030.00316.94
8.0.230.0000.00716.82
8.0.220.0000.00716.93
8.0.210.0070.00316.79
8.0.200.0030.00316.95
8.0.190.0040.00416.96
8.0.180.0040.00416.90
8.0.170.0030.00616.96
8.0.160.0000.00716.90
8.0.150.0060.00316.82
8.0.140.0000.00916.73
8.0.130.0050.00013.26
8.0.120.0030.00516.83
8.0.110.0040.00416.70
8.0.100.0080.00016.82
8.0.90.0000.00716.89
8.0.80.0130.00716.82
8.0.70.0040.00416.90
8.0.60.0040.00416.68
8.0.50.0000.00816.74
8.0.30.0110.00617.18
8.0.20.0080.01117.40
8.0.10.0040.00416.99
8.0.00.0090.00816.62
7.4.330.0000.00516.79
7.4.320.0000.00716.53
7.4.300.0030.00316.64
7.4.290.0000.00916.54
7.4.280.0000.00816.48
7.4.270.0050.00216.64
7.4.260.0050.00216.61
7.4.250.0050.00216.35
7.4.240.0040.00416.50
7.4.230.0070.00016.59
7.4.220.0070.01716.51
7.4.210.0040.01116.45
7.4.200.0000.00716.34
7.4.160.0110.01116.41
7.4.150.0100.00617.40
7.4.140.0110.00717.86
7.4.130.0110.00716.50
7.4.120.0130.00516.44
7.4.110.0100.01816.60
7.4.100.0070.01616.57
7.4.90.0070.01016.45
7.4.80.0030.01319.39
7.4.70.0080.00816.51
7.4.60.0100.01016.49
7.4.50.0000.01916.46
7.4.40.0030.01316.48
7.4.30.0090.01216.59
7.4.00.0000.01214.98
7.3.330.0000.00613.09
7.3.320.0000.00513.16
7.3.310.0070.00016.19
7.3.300.0030.00316.23
7.3.290.0130.00516.24
7.3.280.0070.00816.30
7.3.270.0100.00717.40
7.3.260.0070.01816.46
7.3.250.0100.01116.40
7.3.240.0050.01116.28
7.3.230.0070.01016.39
7.3.210.0110.00716.42
7.3.200.0060.00916.22
7.3.190.0120.00316.31
7.3.180.0100.01016.43
7.3.170.0060.01416.51
7.3.160.0030.01216.29
7.2.330.0100.00716.50
7.2.320.0060.01016.38
7.2.310.0100.01316.52
7.2.300.0030.01316.45
7.2.290.0110.00516.32
7.2.60.0090.00616.58
7.2.00.0040.00819.47
7.1.200.0060.00615.40
7.1.100.0030.00717.86
7.1.70.0070.00016.66
7.1.60.0070.01719.40
7.1.50.0130.00016.74
7.1.00.0030.07722.33
7.0.200.0500.00614.14
7.0.60.0200.03719.85
7.0.50.0030.08317.88
7.0.40.0070.09019.92
7.0.30.0270.05720.17
7.0.20.0270.03720.01
7.0.10.0000.07320.09
7.0.00.0130.03720.16
5.6.280.0100.05020.81
5.6.210.0100.07720.55
5.6.200.0070.05318.22
5.6.190.0070.05320.60
5.6.180.0230.05720.41
5.6.170.0430.06320.40
5.6.160.0070.08020.69
5.6.150.0170.04318.18
5.6.140.0070.07018.18
5.6.130.0030.04318.11
5.6.120.0270.06720.99
5.6.110.0130.07020.95
5.6.100.0000.04321.00
5.6.90.0230.06721.01
5.6.80.0100.07720.50
5.5.350.4170.04020.31
5.5.340.0030.04717.95
5.5.330.0130.06020.23
5.5.320.0370.04320.31
5.5.310.0170.05020.32
5.5.300.0000.04717.97
5.5.290.0070.04318.01
5.5.280.0070.04020.76
5.5.270.0070.08020.75
5.5.260.0070.08020.76
5.5.250.0100.08020.49
5.5.240.0170.04020.31

preferences:
85.55 ms | 401 KiB | 5 Q