3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = array('a' => '"i'); $y = json_encode($x); $z = str_replace($y, '\"', 'x'); var_dump($y);

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)
8.3.60.0120.00318.43
8.3.50.0090.00617.93
8.3.40.0090.00918.32
8.3.30.0110.00418.54
8.3.20.0040.00420.18
8.3.10.0000.00721.77
8.3.00.0080.00019.25
8.2.180.0120.00316.38
8.2.170.0090.00922.96
8.2.160.0120.00919.19
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0070.00022.06
8.2.120.0140.00026.35
8.2.110.0060.00320.91
8.2.100.0030.00717.80
8.2.90.0030.00619.17
8.2.80.0030.00617.97
8.2.70.0040.00417.48
8.2.60.0050.00517.90
8.2.50.0050.00518.10
8.2.40.0030.00520.47
8.2.30.0040.00419.09
8.2.20.0040.00417.50
8.2.10.0040.00418.08
8.2.00.0000.00717.95
8.1.280.0120.00625.92
8.1.270.0040.00423.97
8.1.260.0040.00428.09
8.1.250.0080.00028.09
8.1.240.0040.00424.03
8.1.230.0070.00417.83
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0040.00417.00
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0080.00018.50
8.1.160.0070.00022.06
8.1.150.0040.00418.88
8.1.140.0000.00719.42
8.1.130.0030.00317.63
8.1.120.0050.00217.43
8.1.110.0000.00717.42
8.1.100.0070.00417.28
8.1.90.0040.00417.27
8.1.80.0050.00317.40
8.1.70.0040.00417.28
8.1.60.0000.00717.53
8.1.50.0080.00017.43
8.1.40.0040.00417.34
8.1.30.0040.00417.59
8.1.20.0040.00417.63
8.1.10.0040.00417.50
8.1.00.0050.00217.30
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0040.00418.43
8.0.270.0030.00317.17
8.0.260.0040.00417.14
8.0.250.0000.00716.78
8.0.240.0080.00016.78
8.0.230.0000.00816.90
8.0.220.0030.00516.84
8.0.210.0040.00416.80
8.0.200.0050.00516.84
8.0.190.0030.00616.92
8.0.180.0050.00316.66
8.0.170.0080.00016.88
8.0.160.0040.00416.89
8.0.150.0000.00716.71
8.0.140.0030.00716.78
8.0.130.0030.00313.29
8.0.120.0040.00416.83
8.0.110.0080.00016.79
8.0.100.0050.00216.86
8.0.90.0070.00016.60
8.0.80.0030.01416.73
8.0.70.0000.00716.66
8.0.60.0050.00216.81
8.0.50.0000.00816.92
8.0.30.0080.01117.00
8.0.20.0080.01117.40
8.0.10.0040.00416.75
8.0.00.0120.00916.54
7.4.330.0000.00515.08
7.4.320.0000.00616.36
7.4.300.0000.00716.54
7.4.290.0030.00516.53
7.4.280.0040.00816.27
7.4.270.0060.00316.42
7.4.260.0070.00016.51
7.4.250.0000.00716.31
7.4.240.0070.00016.41
7.4.230.0000.00716.52
7.4.220.0100.00716.43
7.4.210.0110.01216.60
7.4.200.0080.00016.59
7.4.160.0080.01116.38
7.4.150.0070.01117.40
7.4.140.0140.00717.86
7.4.130.0080.00916.37
7.4.120.0050.01216.42
7.4.110.0080.01116.18
7.4.100.0110.00716.50
7.4.90.0070.01016.38
7.4.80.0100.00619.39
7.4.70.0040.01216.55
7.4.60.0140.00316.27
7.4.50.0030.01316.32
7.4.40.0100.01016.39
7.4.30.0000.01716.35
7.4.00.0040.00814.73
7.3.330.0050.00012.95
7.3.320.0030.00312.82
7.3.310.0040.00416.17
7.3.300.0030.00316.04
7.3.290.0110.00616.12
7.3.280.0080.01116.11
7.3.270.0140.00917.40
7.3.260.0120.00416.15
7.3.250.0090.00816.18
7.3.240.0130.00416.05
7.3.230.0050.01416.39
7.3.210.0120.00616.12
7.3.200.0030.01516.11
7.3.190.0030.01316.31
7.3.180.0090.01216.09
7.3.170.0090.01316.24
7.3.160.0080.00815.99
7.3.10.0180.00316.20
7.3.00.0170.00015.90
7.2.330.0120.00616.41
7.2.320.0090.00616.65
7.2.310.0100.00616.41
7.2.300.0120.00616.40
7.2.290.0100.00716.52
7.2.130.0030.01016.27
7.2.120.0100.00716.26
7.2.110.0090.00516.37
7.2.100.0100.00716.02
7.2.90.0090.00316.73
7.2.80.0060.00916.31
7.2.70.0100.00716.85
7.2.60.0110.00916.62
7.2.50.0150.00316.74
7.2.40.0090.01416.13
7.2.30.0110.01416.78
7.2.20.0130.00516.68
7.2.10.0100.00716.78
7.2.00.0100.00316.98
7.1.250.0070.00715.26
7.1.200.0030.01315.64
7.1.70.0080.00816.79
7.1.60.0080.00319.38
7.1.00.0030.07722.56
7.0.200.0340.00314.63
7.0.90.0570.06719.93
7.0.80.0500.03719.87
7.0.70.0500.08319.95
7.0.60.0630.08019.95
7.0.50.0700.06720.20
7.0.40.0000.05020.08
7.0.30.0070.04320.15
7.0.20.0030.05320.10
7.0.10.0170.07320.14
7.0.00.0030.05720.04
5.6.230.0100.08020.59
5.6.220.0030.05320.52
5.6.210.0200.07020.64
5.6.200.0070.08321.07
5.6.190.0130.04020.93
5.6.180.0070.08720.95
5.6.170.0070.07020.96
5.6.160.0170.08021.02
5.6.150.0030.05321.16
5.6.140.0130.06020.99
5.6.130.0100.08320.93
5.6.120.0070.09021.16
5.6.110.0100.08721.03
5.6.100.0070.06021.04
5.6.90.0130.07320.98
5.6.80.0130.07320.55
5.6.70.0070.04020.50
5.6.60.0070.08320.50
5.6.50.0170.05320.55
5.6.40.0070.06020.38
5.6.30.0070.07020.46
5.6.20.0030.05720.30
5.6.10.0070.08020.35
5.6.00.0070.04720.45

preferences:
60.23 ms | 401 KiB | 5 Q