3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "a_z"; $str++; var_dump($str); $str--; var_dump($str);

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)
8.3.60.0120.00318.56
8.3.50.0170.00318.31
8.3.40.0070.00718.97
8.3.30.0090.00618.54
8.3.20.0040.00420.78
8.3.10.0040.00421.77
8.3.00.0060.00319.21
8.2.180.0120.00318.16
8.2.170.0100.01022.96
8.2.160.0030.01319.08
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00517.84
8.2.120.0080.00026.35
8.2.110.0100.00020.52
8.2.100.0080.00417.57
8.2.90.0040.00417.50
8.2.80.0030.00518.79
8.2.70.0050.00317.50
8.2.60.0040.00417.80
8.2.50.0060.00318.07
8.2.40.0030.00618.16
8.2.30.0000.00819.76
8.2.20.0000.00717.99
8.2.10.0030.00518.08
8.2.00.0040.00417.55
8.1.280.0130.00925.92
8.1.270.0040.00722.11
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0030.00620.70
8.1.230.0080.00420.89
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0070.00319.01
8.1.180.0040.00418.10
8.1.170.0040.00418.59
8.1.160.0000.00718.82
8.1.150.0080.00020.27
8.1.140.0000.00719.50
8.1.130.0080.00019.06
8.1.120.0000.00717.48
8.1.110.0030.00517.32
8.1.100.0000.00717.39
8.1.90.0000.00817.29
8.1.80.0030.00717.40
8.1.70.0030.00317.31
8.1.60.0050.00317.51
8.1.50.0030.00617.33
8.1.40.0000.00817.48
8.1.30.0000.00817.54
8.1.20.0000.00817.53
8.1.10.0050.00217.41
8.1.00.0080.00017.32
8.0.300.0080.00318.77
8.0.290.0000.00816.58
8.0.280.0040.00418.41
8.0.270.0040.00417.19
8.0.260.0000.00717.20
8.0.250.0050.00216.87
8.0.240.0000.00616.93
8.0.230.0050.00316.77
8.0.220.0040.00416.70
8.0.210.0030.00316.77
8.0.200.0070.00016.79
8.0.190.0000.00816.77
8.0.180.0040.00416.86
8.0.170.0040.00416.74
8.0.160.0040.00416.91
8.0.150.0070.00016.70
8.0.140.0000.00716.75
8.0.130.0000.00513.21
8.0.120.0000.00716.84
8.0.110.0070.00016.86
8.0.100.0040.00416.76
8.0.90.0030.00416.70
8.0.80.0100.01016.86
8.0.70.0080.00016.80
8.0.60.0000.00816.86
8.0.50.0040.00416.66
8.0.30.0140.00716.95
8.0.20.0100.00817.40
8.0.10.0050.00316.82
8.0.00.0100.01316.78
7.4.330.0050.00015.55
7.4.320.0000.00616.42
7.4.300.0060.00016.54
7.4.290.0030.00316.42
7.4.280.0000.00816.52
7.4.270.0030.00316.38
7.4.260.0000.00716.54
7.4.250.0030.00316.34
7.4.240.0000.00716.32
7.4.230.0000.00716.32
7.4.220.0000.01716.54
7.4.210.0120.00616.41
7.4.200.0040.00416.56
7.4.160.0050.01116.50
7.4.150.0140.00417.40
7.4.140.0060.01117.86
7.4.130.0060.01116.48
7.4.120.0060.01416.44
7.4.110.0080.00816.35
7.4.100.0090.00916.50
7.4.90.0090.01116.54
7.4.80.0130.00719.39
7.4.70.0050.01116.33
7.4.60.0130.00316.41
7.4.50.0080.00816.49
7.4.40.0150.00616.38
7.4.30.0100.00716.36
7.4.00.0110.00714.92
7.3.330.0030.00313.08
7.3.320.0050.00012.89
7.3.310.0000.00616.33
7.3.300.0040.00416.10
7.3.290.0000.00716.20
7.3.280.0070.00816.20
7.3.270.0120.00617.40
7.3.260.0130.00616.29
7.3.250.0090.00916.24
7.3.240.0070.01016.41
7.3.230.0160.00016.41
7.3.210.0100.00716.27
7.3.200.0100.00616.32
7.3.190.0140.00516.38
7.3.180.0130.00316.47
7.3.170.0110.01116.30
7.3.160.0130.00716.26
7.3.120.0000.01714.82
7.3.110.0070.01014.96
7.3.100.0030.01014.63
7.3.90.0040.01214.44
7.3.80.0100.00314.68
7.3.70.0040.00814.80
7.3.60.0040.00914.92
7.3.50.0040.01414.46
7.3.40.0000.01414.60
7.3.30.0060.00614.82
7.3.20.0030.01016.30
7.3.10.0050.00516.62
7.3.00.0120.00616.41
7.2.330.0100.00716.24
7.2.320.0160.00616.57
7.2.310.0100.00716.32
7.2.300.0120.00416.29
7.2.290.0080.00816.57
7.2.250.0030.01614.95
7.2.240.0070.01414.93
7.2.230.0030.01314.75
7.2.220.0040.00814.91
7.2.210.0110.00614.47
7.2.200.0000.01414.89
7.2.190.0000.01514.84
7.2.180.0070.01115.02
7.2.170.0080.00414.88
7.2.160.0090.00014.95
7.2.150.0070.01116.80
7.2.140.0030.01216.82
7.2.130.0030.01216.75
7.2.120.0070.01116.82
7.2.110.0100.00316.76
7.2.100.0030.01016.63
7.2.90.0060.01216.87
7.2.80.0110.00716.78
7.2.70.0060.00616.53
7.2.60.0030.01316.69
7.2.50.0050.00916.89
7.2.40.0070.00716.99
7.2.30.0100.01016.77
7.2.20.0070.01316.80
7.2.10.0030.01016.88
7.2.00.0060.01016.97
7.1.330.0070.01015.73
7.1.320.0040.00415.54
7.1.310.0030.01015.56
7.1.300.0060.00615.70
7.1.290.0060.01015.77
7.1.280.0040.00815.82
7.1.270.0060.00315.84
7.1.260.0030.00615.69
7.1.250.0090.00315.96
7.1.200.0000.00815.53
7.1.70.0080.00017.00
7.1.60.0100.00317.04
7.1.00.0070.06022.48
7.0.200.0100.00016.84
7.0.140.0170.05321.99
7.0.130.0100.05721.95
7.0.120.0100.05721.98
7.0.110.0070.06022.08
7.0.100.0100.05722.17
7.0.90.0170.05022.01
7.0.80.0130.05022.14
7.0.70.0100.05722.00
7.0.60.0100.05322.20
7.0.50.0100.05721.99
7.0.40.0070.05722.13
7.0.30.0130.05322.00
7.0.20.0030.06022.19
7.0.10.0170.05022.14
7.0.00.0170.05022.12
5.6.290.0130.05320.80
5.6.280.0070.05721.11
5.6.270.0100.05720.82
5.6.260.0030.06020.90
5.6.250.0070.05721.09
5.6.240.0030.06321.14
5.6.230.0170.06720.84
5.6.220.0130.05720.96
5.6.210.0170.05720.93
5.6.200.0130.07720.91
5.6.190.0100.06320.87
5.6.180.0100.05321.05
5.6.170.0100.05321.07
5.6.160.0070.07720.86
5.6.150.0130.05720.88
5.6.140.0030.06320.98
5.6.130.0000.06320.91
5.6.120.0170.05021.07
5.6.110.0070.06020.80
5.6.100.0130.05021.04
5.6.90.0100.06021.01
5.6.80.0100.05320.29
5.6.70.0170.04720.40
5.6.60.0130.05320.13
5.6.50.0100.05320.37
5.6.40.0070.05320.39
5.6.30.0130.05320.23
5.6.20.0100.05720.39
5.6.10.0100.05020.34
5.6.00.0100.05320.10

preferences:
59.3 ms | 401 KiB | 5 Q