3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'test'; $test = '234'; var_dump(is_numeric($$var[0]));

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)
8.3.60.0060.01216.50
8.3.50.0140.00318.17
8.3.40.0120.00318.52
8.3.30.0120.00318.51
8.3.20.0040.00419.02
8.3.10.0040.00421.82
8.3.00.0080.00023.53
8.2.180.0110.00417.98
8.2.170.0070.01422.96
8.2.160.0130.00719.50
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0040.00420.26
8.2.120.0080.00026.35
8.2.110.0060.00620.98
8.2.100.0100.00317.91
8.2.90.0050.00519.20
8.2.80.0040.00717.97
8.2.70.0000.00917.80
8.2.60.0040.00418.05
8.2.50.0000.00818.10
8.2.40.0040.00419.42
8.2.30.0070.00019.39
8.2.20.0070.00018.13
8.2.10.0060.00319.84
8.2.00.0070.00019.34
8.1.280.0130.01025.92
8.1.270.0040.00421.95
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0140.00323.89
8.1.230.0040.00718.93
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0000.00917.36
8.1.190.0040.00417.51
8.1.180.0000.00818.10
8.1.170.0060.00318.84
8.1.160.0040.00418.84
8.1.150.0000.00818.80
8.1.140.0000.00817.60
8.1.130.0000.00718.98
8.1.120.0000.00717.51
8.1.110.0000.00717.41
8.1.100.0000.00817.44
8.1.90.0060.00317.34
8.1.80.0000.00817.49
8.1.70.0000.00717.49
8.1.60.0060.00317.47
8.1.50.0060.00317.52
8.1.40.0060.00317.55
8.1.30.0040.00417.53
8.1.20.0000.00817.65
8.1.10.0000.00817.58
8.1.00.0040.00417.48
8.0.300.0030.00518.77
8.0.290.0030.00516.63
8.0.280.0030.00318.43
8.0.270.0030.00517.32
8.0.260.0070.00017.15
8.0.250.0000.00816.96
8.0.240.0090.00016.87
8.0.230.0000.00816.95
8.0.220.0000.00716.77
8.0.210.0030.00516.94
8.0.200.0030.00316.97
8.0.190.0050.00216.96
8.0.180.0030.00516.86
8.0.170.0030.00616.77
8.0.160.0000.00716.89
8.0.150.0000.00716.71
8.0.140.0000.00716.76
8.0.130.0050.00013.36
8.0.120.0080.00016.83
8.0.110.0000.00716.71
8.0.100.0030.00416.77
8.0.90.0070.00016.94
8.0.80.0080.01116.86
8.0.70.0040.00416.82
8.0.60.0040.00416.79
8.0.50.0070.00016.88
8.0.30.0050.01317.14
8.0.20.0040.01417.40
8.0.10.0000.00717.05
8.0.00.0100.00816.64
7.4.330.0000.00415.55
7.4.320.0030.00316.42
7.4.300.0030.00316.60
7.4.290.0060.00016.47
7.4.280.0070.00016.62
7.4.270.0040.00416.48
7.4.260.0000.00716.55
7.4.250.0070.00016.35
7.4.240.0000.00716.55
7.4.230.0000.00716.51
7.4.220.0000.00816.46
7.4.210.0120.00516.57
7.4.200.0030.00316.49
7.4.160.0040.01116.49
7.4.140.0080.00917.86
7.4.130.0060.01216.48
7.4.120.0090.01016.52
7.4.110.0100.00716.47
7.4.100.0110.00616.43
7.4.90.0130.00616.61
7.4.80.0100.01219.39
7.4.70.0120.00416.50
7.4.60.0080.00716.37
7.4.50.0030.01316.56
7.4.40.0120.00916.46
7.4.00.0040.01115.09
7.3.330.0030.00312.95
7.3.320.0060.00012.93
7.3.310.0040.00416.06
7.3.300.0040.00416.26
7.3.290.0070.00016.13
7.3.280.0100.00716.20
7.3.260.0080.01016.39
7.3.240.0100.01016.41
7.3.230.0090.01216.21
7.3.210.0130.00316.43
7.3.200.0130.00316.37
7.3.190.0120.00616.42
7.3.180.0030.01216.51
7.3.170.0060.00916.63
7.3.160.0120.01216.57
7.3.120.0110.00414.65
7.3.110.0030.01314.63
7.3.100.0060.00914.40
7.3.90.0090.00614.95
7.3.80.0090.00614.71
7.3.70.0040.01114.78
7.3.60.0050.00514.74
7.3.50.0110.00714.73
7.3.40.0080.00714.89
7.3.30.0060.00314.71
7.3.20.0090.00616.67
7.3.10.0070.00716.61
7.3.00.0070.00816.64
7.2.330.0100.00916.27
7.2.320.0120.00616.63
7.2.310.0140.00716.38
7.2.300.0100.00716.49
7.2.290.0070.01516.57
7.2.240.0000.01814.53
7.2.230.0040.01114.99
7.2.220.0060.01014.67
7.2.210.0040.01215.10
7.2.200.0030.00614.76
7.2.190.0040.01214.66
7.2.180.0000.01414.71
7.2.170.0090.00614.82
7.2.160.0100.00614.67
7.2.150.0060.00616.88
7.2.140.0060.00916.48
7.2.130.0100.00516.90
7.2.120.0050.00916.70
7.2.110.0060.00816.95
7.2.100.0100.00316.76
7.2.90.0020.01216.81
7.2.80.0070.00516.83
7.2.70.0790.00916.23
7.2.60.0630.00716.22
7.2.50.0220.01116.02
7.2.40.0050.01116.13
7.2.30.0090.00916.10
7.2.20.0430.01415.95
7.2.10.0100.00716.16
7.2.00.0110.00716.13
7.1.330.0100.00715.83
7.1.320.0040.00815.55
7.1.310.0030.00615.96
7.1.300.0000.01615.73
7.1.290.0070.00315.63
7.1.280.0090.00015.99
7.1.270.0080.00415.97
7.1.260.0070.00715.68
7.1.250.0070.00715.63
7.1.200.0070.00715.53
7.1.170.0190.00013.68
7.1.160.0950.00613.77
7.1.150.1570.00313.50
7.1.140.1620.00913.86
7.1.130.0070.01013.88
7.1.120.0130.00413.75
7.1.110.1110.00613.98
7.1.100.0140.01013.78
7.1.90.1120.01213.63
7.1.80.0140.01213.85
7.1.70.0140.00813.73
7.1.60.0710.02531.92
7.1.50.0320.00631.78
7.1.40.0260.01331.55
7.1.30.0740.00331.54
7.1.20.0290.00931.76
7.1.10.0080.01113.74
7.1.00.0280.00313.76

preferences:
56.33 ms | 401 KiB | 5 Q