3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(&$str) { $str = 'xyz'; return $str; } $o = "abc"; // No errors foo($o); call_user_func('foo', $o); call_user_func('foo', [$o]); $a[] = "abc"; $a[] = "abc"; $a[] = "abc"; // Warning: Parameter 1 to foo() expected to be a reference, value given in call_user_func('foo', array_slice($a, 0, 1)); var_dump($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)
8.3.60.0060.00916.88
8.3.50.0100.01022.01
8.3.40.0100.00718.65
8.3.30.0100.00318.90
8.3.20.0110.00421.90
8.3.10.0040.00420.52
8.3.00.0040.00421.60
8.2.180.0100.01018.20
8.2.170.0170.00322.96
8.2.160.0110.00719.45
8.2.150.0090.00024.18
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00420.93
8.2.110.0070.00320.94
8.2.100.0110.00018.02
8.2.90.0050.00318.25
8.2.80.0030.00518.05
8.2.70.0000.00818.04
8.2.60.0000.00818.34
8.2.50.0030.00618.10
8.2.40.0070.00019.48
8.2.30.0040.00419.32
8.2.20.0070.00018.04
8.2.10.0040.00417.98
8.2.00.0040.00417.85
8.1.280.0070.01425.92
8.1.270.0080.00023.91
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0070.00322.00
8.1.230.0120.00022.75
8.1.220.0000.00817.74
8.1.210.0080.00018.90
8.1.200.0070.00317.35
8.1.190.0040.00417.25
8.1.180.0030.00518.10
8.1.170.0090.00018.59
8.1.160.0000.00722.11
8.1.150.0070.00018.96
8.1.140.0040.00419.49
8.1.130.0000.00717.56
8.1.120.0030.00617.36
8.1.110.0000.00717.34
8.1.100.0050.00317.51
8.1.90.0000.00817.48
8.1.80.0040.00417.37
8.1.70.0020.00517.49
8.1.60.0040.00417.55
8.1.50.0040.00417.54
8.1.40.0030.00617.56
8.1.30.0040.00417.64
8.1.20.0040.00417.55
8.1.10.0000.00817.58
8.1.00.0040.00417.51
8.0.300.0000.00719.73
8.0.290.0050.00316.63
8.0.280.0030.00318.49
8.0.270.0000.00817.32
8.0.260.0000.00617.42
8.0.250.0070.00017.05
8.0.240.0030.00316.88
8.0.230.0030.00316.95
8.0.220.0070.00016.95
8.0.210.0070.00016.95
8.0.200.0030.00316.98
8.0.190.0040.00416.95
8.0.180.0070.00016.94
8.0.170.0060.00616.86
8.0.160.0080.00017.02
8.0.150.0000.00816.83
8.0.140.0040.00416.92
8.0.130.0030.00313.38
8.0.120.0030.00616.86
8.0.110.0070.00016.83
8.0.100.0030.00616.99
8.0.90.0070.00016.95
8.0.80.0060.00917.02
8.0.70.0030.00616.84
8.0.60.0000.00817.07
8.0.50.0040.00417.07
8.0.30.0110.01017.16
8.0.20.0120.00917.40
8.0.10.0080.00017.13
8.0.00.0030.01416.83
7.4.330.0000.00515.55
7.4.320.0060.00016.52
7.4.300.0000.00716.36
7.4.290.0040.00416.43
7.4.280.0050.00316.45
7.4.270.0000.00716.37
7.4.260.0030.00316.54
7.4.250.0000.00816.59
7.4.240.0000.00716.62
7.4.230.0030.00316.50
7.4.220.0110.01516.50
7.4.210.0120.00916.56
7.4.200.0030.00316.40
7.4.160.0060.01116.69
7.4.150.0060.01217.40
7.4.140.0080.01017.86
7.4.130.0100.00716.66
7.4.120.0100.00716.52
7.4.110.0090.00916.61
7.4.100.0040.01216.48
7.4.90.0110.00616.57
7.4.80.0040.01219.39
7.4.70.0070.01016.41
7.4.60.0100.01016.82
7.4.50.0040.01216.71
7.4.40.0100.00616.70
7.4.30.0090.00916.68
7.4.00.0050.01114.93
7.3.330.0050.00013.38
7.3.320.0030.00313.18
7.3.310.0070.00016.31
7.3.300.0040.00416.36
7.3.290.0070.00916.34
7.3.280.0100.00816.35
7.3.270.0130.00917.40
7.3.260.0140.00616.42
7.3.250.0100.01016.35
7.3.240.0160.00416.38
7.3.230.0110.00616.57
7.3.210.0110.00816.39
7.3.200.0060.01116.49
7.3.190.0100.01316.39
7.3.180.0070.01016.63
7.3.170.0080.01216.37
7.3.160.0130.00616.33
7.3.120.0140.00415.07
7.3.110.0090.00914.75
7.3.100.0060.01214.89
7.3.90.0110.00314.91
7.3.80.0080.00814.88
7.3.70.0030.00614.63
7.3.60.0070.00414.78
7.3.50.0070.00414.91
7.3.40.0080.00014.87
7.3.30.0040.01114.87
7.3.20.0170.00316.77
7.3.10.0080.00516.84
7.3.00.0060.00616.45
7.2.330.0130.00316.25
7.2.320.0130.00416.52
7.2.310.0070.01016.29
7.2.300.0100.01416.66
7.2.290.0090.01616.72
7.2.250.0100.01014.86
7.2.240.0040.01214.97
7.2.230.0060.00614.97
7.2.220.0100.00514.81
7.2.210.0000.01414.82
7.2.200.0130.00014.90
7.2.190.0030.01014.87
7.2.180.0030.01014.73
7.2.170.0030.00614.83
7.2.60.0030.00916.73
7.1.330.0100.00315.97
7.1.320.0090.00915.96
7.1.310.0110.00715.90
7.1.300.0120.00016.03
7.1.290.0090.00615.94
7.1.280.0030.01015.56
7.1.270.0060.00915.66
7.1.260.0070.00415.61
7.1.200.0080.00415.84
7.1.70.0130.00017.23
7.1.60.0090.00317.06
7.1.50.0040.00717.02
7.1.00.0100.06722.36
7.0.200.0330.00314.71
7.0.110.0470.05020.23
7.0.100.0470.05320.32
7.0.90.0330.06320.25
7.0.80.0330.05720.30
7.0.70.0270.07020.21
7.0.60.0400.05320.21
7.0.50.0270.06020.31
7.0.40.0330.04720.31
7.0.30.0270.05720.24
7.0.20.0130.05020.27
7.0.10.0100.05320.25
7.0.00.0030.06020.36
5.6.260.0130.05321.09
5.6.250.0130.05320.88
5.6.240.0070.06320.86
5.6.230.0070.06021.11
5.6.220.0170.04720.97
5.6.210.0070.05720.97
5.6.200.0170.05320.95
5.6.190.0000.06720.84
5.6.180.0100.05720.81
5.6.170.0170.04720.90
5.6.160.0000.06321.01
5.6.150.0130.05320.95
5.6.140.0170.05020.82
5.6.130.0000.06320.80
5.6.120.0130.05320.83
5.6.110.0000.06720.82
5.6.100.0030.06721.00
5.6.90.0070.05721.02
5.6.80.0100.05720.41
5.6.70.0070.05320.21
5.6.60.0170.04720.44
5.6.50.0100.05020.19
5.6.40.0070.05320.21
5.6.30.0100.05320.29
5.6.20.0130.05020.39
5.6.10.0100.05020.45
5.6.00.0030.05720.09

preferences:
32.75 ms | 401 KiB | 5 Q