3v4l.org

run code in 300+ PHP versions simultaneously
<?php function Conv( $a, $s ) { switch ( $s ) { case 'k': { $s = 1; $t = 'KB'; } break; case 'm': { $s = 2; $t = 'MB'; } break; case 'g': { $s = 3; $t = 'GB'; } break; case 't': { $s = 4; $t = 'TB'; } break; default: { $s = 0; $t = 'B'; } break; } return [ $a * pow( 1024, $s ), $t ]; // gives "A non well formed numeric value encountered" } var_dump( Conv("3", "k") ); var_dump( Conv("3k", "k") );

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)
8.3.60.0140.01016.85
8.3.50.0080.00618.04
8.3.40.0080.00818.82
8.3.30.0110.00318.85
8.3.20.0040.00419.33
8.3.10.0030.00523.58
8.3.00.0030.00520.82
8.2.180.0070.01016.50
8.2.170.0180.00422.96
8.2.160.0130.00022.03
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0110.00321.05
8.2.110.0060.00321.10
8.2.100.0080.00417.84
8.2.90.0040.00417.75
8.2.80.0040.00418.85
8.2.70.0000.00817.50
8.2.60.0000.00818.04
8.2.50.0080.00018.07
8.2.40.0000.00818.22
8.2.30.0000.00717.95
8.2.20.0030.00618.16
8.2.10.0000.00818.17
8.2.00.0030.00517.66
8.1.280.0090.00625.92
8.1.270.0080.00022.14
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0070.00323.77
8.1.230.0040.00822.63
8.1.220.0090.00017.74
8.1.210.0000.01018.77
8.1.200.0100.00017.35
8.1.190.0090.00019.00
8.1.180.0080.00018.10
8.1.170.0000.00818.49
8.1.160.0030.00518.93
8.1.150.0000.00818.80
8.1.140.0030.00522.11
8.1.130.0000.00717.32
8.1.120.0000.00717.43
8.1.110.0020.00517.52
8.1.100.0000.00817.45
8.1.90.0050.00317.48
8.1.80.0040.00417.36
8.1.70.0040.00417.46
8.1.60.0030.00517.63
8.1.50.0030.00517.46
8.1.40.0030.00517.47
8.1.30.0040.00417.58
8.1.20.0030.00617.52
8.1.10.0000.00817.43
8.1.00.0040.00417.43
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.36
8.0.270.0040.00417.32
8.0.260.0000.00716.85
8.0.250.0000.01017.06
8.0.240.0070.00017.00
8.0.230.0000.00717.05
8.0.220.0060.00316.79
8.0.210.0030.00616.84
8.0.200.0070.00017.00
8.0.190.0000.00816.92
8.0.180.0000.00916.97
8.0.170.0000.00816.96
8.0.160.0050.00216.97
8.0.150.0000.00716.78
8.0.140.0070.00416.78
8.0.130.0000.00613.36
8.0.120.0080.00016.95
8.0.110.0040.00416.96
8.0.100.0030.00516.90
8.0.90.0070.00016.74
8.0.80.0120.00416.95
8.0.70.0040.00416.78
8.0.60.0000.00716.83
8.0.50.0000.00716.82
8.0.30.0100.00817.12
8.0.20.0140.00617.40
8.0.10.0050.00316.95
8.0.00.0120.00717.06
7.4.330.0000.00515.55
7.4.320.0040.00416.53
7.4.300.0040.00416.49
7.4.290.0030.00316.63
7.4.280.0030.00416.60
7.4.270.0030.00616.50
7.4.260.0040.00416.59
7.4.250.0040.00416.52
7.4.240.0050.00216.50
7.4.230.0070.00016.48
7.4.220.0060.00316.70
7.4.210.0070.00816.58
7.4.200.0000.00716.36
7.4.160.0100.00716.53
7.4.140.0110.01017.86
7.4.130.0150.00316.55
7.4.120.0110.00816.58
7.4.110.0110.00716.39
7.4.100.0030.01416.61
7.4.90.0150.00316.59
7.4.80.0070.01019.39
7.4.70.0090.00816.49
7.4.60.0030.01416.59
7.4.50.0070.00716.71
7.4.40.0110.00616.43
7.4.00.0070.00715.16
7.3.330.0000.00513.33
7.3.320.0030.00313.21
7.3.310.0030.00616.28
7.3.300.0000.00616.30
7.3.290.0030.00316.23
7.3.280.0120.00316.29
7.3.260.0080.01016.50
7.3.240.0120.00816.44
7.3.230.0080.00816.40
7.3.210.0110.00516.69
7.3.200.0100.00716.48
7.3.190.0120.00916.46
7.3.180.0060.01216.66
7.3.170.0120.00816.48
7.3.160.0040.01216.56
7.2.330.0030.01416.70
7.2.320.0080.00916.38
7.2.310.0130.01016.71
7.2.300.0170.00616.44
7.2.290.0040.01516.47
7.2.110.0440.00614.77
7.2.100.0520.01314.82
7.2.90.0540.00015.00
7.2.80.0370.01014.63
7.2.70.0520.00015.04
7.2.60.0540.00715.09
7.2.50.0440.01015.09
7.2.40.0420.01014.95
7.2.30.0410.00914.89
7.2.20.0460.01015.02
7.2.10.0440.00615.00
7.2.00.0430.00714.96
7.1.230.0650.01013.89
7.1.220.0530.00313.83
7.1.210.1300.00314.04
7.1.200.0390.00613.90
7.1.190.0680.00713.75
7.1.180.0600.00713.66
7.1.170.0440.01013.86
7.1.160.0480.00713.83
7.1.150.0450.01013.98
7.1.140.0440.00913.77
7.1.130.0490.00613.75
7.1.120.0550.00013.92
7.1.110.0570.00614.07
7.1.100.0620.00313.82
7.1.90.0540.00314.02
7.1.80.0510.00613.64
7.1.70.0490.00313.81
7.1.60.1710.01031.84
7.1.50.1370.01031.71
7.1.40.1300.00631.96
7.1.30.1330.00331.83
7.1.20.1240.00731.88
7.1.10.0930.00713.67
7.1.00.0850.01013.86
5.6.380.0040.01114.61

preferences:
37.53 ms | 400 KiB | 5 Q