3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var1=time(); $var2=&$var1; $var2='test'; var_dump($var1);

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)
7.3.120.0000.01614.75
7.3.110.0060.01214.92
7.3.100.0100.00014.40
7.3.90.0100.00414.93
7.3.80.0130.00314.39
7.3.70.0000.01514.60
7.3.60.0080.00814.73
7.3.50.0100.00714.76
7.3.40.0080.00814.78
7.3.30.0030.01014.84
7.3.20.0040.00816.65
7.3.10.0000.01216.57
7.3.00.0040.01216.51
7.2.240.0110.00714.75
7.2.230.0030.01014.61
7.2.220.0060.00615.05
7.2.210.0040.00714.77
7.2.200.0040.00715.04
7.2.190.0030.00914.93
7.2.180.0070.00314.70
7.2.170.0080.00814.89
7.2.160.0040.01415.01
7.2.150.0030.01316.59
7.2.140.0070.00316.90
7.2.130.0040.01116.65
7.2.120.0040.01116.80
7.2.110.0050.00716.69
7.2.100.0080.00616.70
7.2.90.0060.01116.79
7.2.80.0080.01016.66
7.2.70.0040.00816.77
7.2.60.0070.00816.83
7.2.50.0080.00716.84
7.2.40.0090.00516.72
7.2.30.0080.00816.95
7.2.20.0040.01216.76
7.2.10.0020.00916.85
7.2.00.0050.00716.84
7.1.330.0080.00815.72
7.1.320.0070.00715.78
7.1.310.0080.00615.56
7.1.300.0030.01415.73
7.1.290.0030.01315.54
7.1.280.0030.01015.71
7.1.270.0050.00815.77
7.1.260.0070.01015.79
7.1.250.0040.00615.75
7.1.240.0110.00415.76
7.1.230.0060.00615.72
7.1.220.0040.01115.35
7.1.210.0070.00715.57
7.1.200.0040.00615.50
7.1.190.0030.01015.73
7.1.180.0040.00715.84
7.1.170.0000.01415.61
7.1.160.0060.00615.75
7.1.150.0000.00915.70
7.1.140.0040.00715.68
7.1.130.0040.00815.54
7.1.120.0060.00815.42
7.1.110.0070.00716.85
7.1.100.0090.00616.70
7.1.90.0070.00917.03
7.1.80.0030.01316.73
7.1.70.0090.00516.33
7.1.60.0100.00825.24
7.1.50.0120.01425.24
7.1.40.0210.00424.87
7.1.30.0170.00925.10
7.1.20.0120.00925.07
7.1.10.0160.00316.09
7.1.00.0110.00516.15
7.0.330.0070.00715.22
7.0.320.0070.00715.24
7.0.310.0030.00715.20
7.0.300.0090.00615.13
7.0.290.0030.00615.25
7.0.280.0030.00915.14
7.0.270.0080.00315.38
7.0.260.0070.00315.33
7.0.250.0030.01016.45
7.0.240.0060.00516.55
7.0.230.0040.00916.61
7.0.220.0120.00616.71
7.0.210.0060.00516.04
7.0.200.0060.00915.98
7.0.190.0060.00916.07
7.0.180.0070.01115.66
7.0.170.0040.01315.53
7.0.160.0050.01115.74
7.0.150.0040.01315.63
7.0.140.0070.00715.71
7.0.130.0070.00515.95
7.0.120.0040.00915.92
7.0.110.0080.00615.77
7.0.100.0030.01015.68
7.0.90.0020.01415.89
7.0.80.0020.01015.73
7.0.70.0080.00615.76
7.0.60.0030.01015.63
7.0.50.0030.01115.83
7.0.40.0100.00514.97
7.0.30.0050.00714.85
7.0.20.0070.00314.58
7.0.10.0030.01014.83
7.0.00.0060.00514.75
5.6.380.0110.00414.39

preferences:
45.85 ms | 400 KiB | 5 Q