3v4l.org

run code in 300+ PHP versions simultaneously
<?php $number = 12345; $nString = "$number"; $newNumber = ''; for($i = strlen($nString) - 1; $i >= 0; $i--) { $newNumber .= $nString[$i]; } var_dump($newNumber);

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)
8.5.30.0100.00718.90
8.5.20.0090.00919.70
8.5.10.0110.00618.24
8.5.00.0140.00719.98
8.4.180.0140.00822.15
8.4.170.0100.01123.86
8.4.160.0110.01123.09
8.4.150.0090.00416.89
8.4.140.0140.00817.51
8.4.130.0100.01020.35
8.4.120.0110.00920.65
8.4.110.0070.00322.52
8.4.100.0060.00318.67
8.4.90.0080.00518.51
8.4.80.0080.01317.97
8.4.70.0110.00817.83
8.4.60.0110.00818.53
8.4.50.0070.00918.80
8.4.40.0000.00917.58
8.4.30.0040.00417.25
8.4.20.0130.00719.29
8.4.10.0030.00719.45
8.3.300.0110.01119.07
8.3.290.0110.00920.73
8.3.280.0160.00618.38
8.3.270.0090.01116.30
8.3.260.0120.00816.66
8.3.250.0080.01118.86
8.3.240.0110.00816.57
8.3.230.0130.00616.42
8.3.220.0090.00817.02
8.3.210.0090.00716.41
8.3.200.0040.00416.73
8.3.190.0060.00917.08
8.3.180.0140.00517.35
8.3.170.0040.01318.75
8.3.160.0040.00417.13
8.3.150.0100.00317.29
8.3.140.0120.00616.79
8.3.130.0000.00818.50
8.3.120.0080.00020.95
8.3.110.0030.00620.94
8.3.100.0040.00416.54
8.3.90.0000.00726.77
8.3.80.0090.00017.97
8.3.70.0090.01218.43
8.3.60.0130.01016.50
8.3.50.0060.01018.24
8.3.40.0150.00318.54
8.3.30.0080.00618.84
8.3.20.0050.00220.25
8.3.10.0040.00423.52
8.3.00.0080.00019.25
8.2.300.0130.01220.37
8.2.290.0120.00720.59
8.2.280.0120.00618.54
8.2.270.0180.00017.36
8.2.260.0110.00416.78
8.2.250.0000.00816.84
8.2.240.0030.00617.23
8.2.230.0040.00822.58
8.2.220.0030.00624.06
8.2.210.0090.00926.77
8.2.200.0090.00016.38
8.2.190.0070.00716.61
8.2.180.0000.01418.41
8.2.170.0070.00722.96
8.2.160.0000.01420.39
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0000.00820.94
8.2.120.0080.00626.35
8.2.110.0030.00520.39
8.2.100.0070.00417.91
8.2.90.0000.00917.84
8.2.80.0060.00319.41
8.2.70.0030.00518.03
8.2.60.0040.00418.03
8.2.50.0040.00418.10
8.2.40.0000.00822.32
8.2.30.0000.00719.44
8.2.20.0040.00418.11
8.2.10.0070.00018.05
8.2.00.0070.00318.16
8.1.340.0090.01317.73
8.1.330.0110.00721.72
8.1.320.0110.00915.80
8.1.310.0040.01116.56
8.1.300.0110.00718.49
8.1.290.0030.00630.84
8.1.280.0110.00325.92
8.1.270.0040.00420.23
8.1.260.0030.00626.35
8.1.250.0000.00828.09
8.1.240.0030.00623.77
8.1.230.0070.00420.82
8.1.220.0040.00717.78
8.1.210.0000.00918.77
8.1.200.0030.00617.23
8.1.190.0040.00417.22
8.1.180.0040.00418.10
8.1.170.0030.00518.53
8.1.160.0040.00418.82
8.1.150.0000.00720.30
8.1.140.0000.00717.59
8.1.130.0060.00318.78
8.1.120.0030.00617.46
8.1.110.0040.00417.29
8.1.100.0040.00417.37
8.1.90.0000.00817.45
8.1.80.0080.00017.29
8.1.70.0030.00517.42
8.1.60.0000.00717.43
8.1.50.0060.00317.52
8.1.40.0000.00717.57
8.1.30.0040.00417.64
8.1.20.0080.00017.68
8.1.10.0020.00517.59
8.1.00.0080.00017.41
8.0.300.0000.00719.98
8.0.290.0040.00416.63
8.0.280.0030.00318.32
8.0.270.0040.00417.11
8.0.260.0070.00016.80
8.0.250.0030.00316.89
8.0.240.0000.00716.89
8.0.230.0050.00216.92
8.0.220.0000.00816.74
8.0.210.0000.00716.83
8.0.200.0060.00016.89
8.0.190.0040.00416.86
8.0.180.0040.00416.85
8.0.170.0040.00416.89
8.0.160.0050.00516.86
8.0.150.0000.00816.82
8.0.140.0030.00316.71
8.0.130.0060.00013.22
8.0.120.0030.00316.78
8.0.110.0000.00816.72
8.0.100.0030.00516.88
8.0.90.0000.00716.69
8.0.80.0060.01016.79
8.0.70.0080.00016.64
8.0.60.0040.00416.76
8.0.50.0040.00416.63
8.0.30.0120.00717.19
8.0.20.0090.00917.40
8.0.10.0050.00216.80
8.0.00.0100.00916.70
7.4.330.0000.00515.55
7.4.320.0030.00316.43
7.4.300.0000.00616.59
7.4.290.0030.00316.56
7.4.280.0000.00816.61
7.4.270.0070.00016.61
7.4.260.0000.00616.53
7.4.250.0030.00516.45
7.4.240.0050.00316.62
7.4.230.0070.00016.63
7.4.220.0000.00716.50
7.4.210.0060.01116.58
7.4.200.0000.00816.63
7.4.160.0100.00916.55
7.4.150.0090.00917.40
7.4.140.0150.00617.86
7.4.130.0040.01416.66
7.4.120.0120.01116.52
7.4.110.0100.00716.71
7.4.100.0100.00716.53
7.4.90.0120.00416.51
7.4.80.0060.01719.39
7.4.70.0120.00916.56
7.4.60.0160.00016.27
7.4.50.0100.00716.69
7.4.40.0100.00716.48
7.4.00.0030.01215.11
7.3.330.0000.00613.18
7.3.320.0030.00313.09
7.3.310.0030.00316.11
7.3.300.0040.00416.38
7.3.290.0040.00416.30
7.3.280.0090.01216.33
7.3.270.0110.00517.40
7.3.260.0080.01016.29
7.3.250.0080.00916.38
7.3.240.0080.00916.41
7.3.230.0100.00716.55
7.3.210.0110.00716.37
7.3.200.0100.00616.51
7.3.190.0140.00616.59
7.3.180.0110.00516.32
7.3.170.0100.01016.65
7.3.160.0030.01216.36
7.3.120.0040.01115.04
7.3.110.0080.00414.92
7.3.100.0120.00615.05
7.3.90.0070.00714.92
7.3.80.0030.01214.54
7.3.70.0030.01015.02
7.3.60.0060.00614.52
7.3.50.0030.00614.79
7.3.40.0100.00014.41
7.3.30.0000.01114.98
7.3.20.0030.01416.59
7.3.10.0030.01016.72
7.3.00.0070.00716.65
7.2.330.0100.00716.45
7.2.320.0030.01416.73
7.2.310.0060.00916.80
7.2.300.0130.00616.73
7.2.290.0100.01016.35
7.2.240.0120.00014.93
7.2.230.0050.00514.69
7.2.220.0060.00914.90
7.2.210.0060.01314.70
7.2.200.0000.01215.16
7.2.190.0030.01615.14
7.2.180.0030.01215.11
7.2.170.0060.01215.14
7.2.160.0090.00615.20
7.2.150.0100.00616.71
7.2.140.0110.00716.92
7.2.130.0100.00716.77
7.2.120.0030.01017.09
7.2.110.0070.00717.01
7.2.100.0060.00916.98
7.2.90.0000.01617.00
7.2.80.0040.00516.93
7.2.70.0080.00816.71
7.2.60.0070.00916.96
7.2.50.0070.01016.73
7.2.40.0040.01116.93
7.2.30.0000.01116.68
7.2.20.0040.01116.96
7.2.10.0140.01217.63
7.2.00.0160.00817.48
7.1.330.0030.01115.88
7.1.320.0040.01115.79
7.1.310.0030.00715.89
7.1.300.0040.01215.79
7.1.290.0030.01215.67
7.1.280.0080.00415.73
7.1.270.0100.00615.63
7.1.260.0060.00915.82
7.1.250.0100.00715.74
7.1.200.0030.00615.96
7.1.130.0200.01216.75
7.1.120.0160.01716.82
7.1.110.0190.01816.14
7.1.100.0370.00316.13
7.1.90.0290.01015.98
7.1.80.0290.00616.25
7.1.70.0210.01015.38
7.1.60.0390.00733.25
7.1.50.0230.01932.97
7.1.40.0460.01732.32
7.1.30.1270.01332.52
7.1.20.0310.01532.75
7.1.10.0250.01514.77
7.1.00.0190.01714.86

preferences:
96.66 ms | 1561 KiB | 5 Q