3v4l.org

run code in 300+ PHP versions simultaneously
<?php $allowed_operators = array("*", "/", "^", "+", "-"); $rpn = "3 4 5 * -"; $rpnlen = strlen($rpn) - 1; $stack = array(); function digit($char) { return ctype_digit((string)$char); } //set_time_limit(2); function r_old() { global $pos, $rpn, $rpnlen, $stack, $allowed_operators, $result; if($rpnlen <= $pos) return false; $pos++; if($rpn[$pos] != ' ') { $tmp = ""; if(digit($rpn[$pos])) { while(digit($rpn[$pos]) || $rpn[$pos] == ".") { $tmp .= $rpn[$pos]; $pos++; } $pos--; if (!empty($tmp)) array_push($stack, $tmp); } else if(in_array($rpn[$pos], $allowed_operators)) { $second = array_pop($stack); $first = array_pop($stack); if($rpn[$pos] == '^') $result = eval("return pow($first, $second);"); else $result = eval("return ($first $rpn[$pos] $second);"); array_push($stack, $result); return r_old(); } else { return r_old(); } } return r_old(); } $result = 0; $pos = 0; function r() { global $pos, $rpn, $rpnlen, $allowed_operators, $result, $stack; while($rpn[$pos] == ' ') $pos++; if($rpnlen <= $pos) return false; if(digit($rpn[$pos])) { $tmp = ""; do { $tmp .= $rpn[$pos]; $pos++; } while(digit($rpn[$pos]) || $rpn[$pos] == "."); array_push($stack, $tmp); } else if(in_array($rpn[$pos], $allowed_operators)) { $second = array_pop($stack); $first = array_pop($stack); if($rpn[$pos] == '^') $result = eval("return pow($first, $second);"); else $result = eval("return ($first $rpn[$pos] $second);"); //echo "return ($first $rpn[$pos] $second);"; array_push($stack, $result); } $pos++; return r(); } r(); echo $result;

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)
8.3.60.0140.00418.55
8.3.50.0120.00821.33
8.3.40.0070.00719.02
8.3.30.0110.00420.34
8.3.20.0090.00020.45
8.3.10.0000.00821.05
8.3.00.0070.00022.51
8.2.180.0070.01116.63
8.2.170.0100.01018.89
8.2.160.0100.00322.96
8.2.150.0030.00624.18
8.2.140.0080.00324.66
8.2.130.0080.00026.16
8.2.120.0040.00420.97
8.2.110.0050.00520.47
8.2.100.0000.01117.84
8.2.90.0040.00419.36
8.2.80.0080.00017.97
8.2.70.0050.00317.63
8.2.60.0000.00817.93
8.2.50.0000.00918.10
8.2.40.0000.00820.50
8.2.30.0000.00719.55
8.2.20.0000.00717.84
8.2.10.0070.00017.75
8.2.00.0000.00817.86
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0080.00023.94
8.1.230.0080.00419.19
8.1.220.0060.00317.74
8.1.210.0050.00518.77
8.1.200.0060.00317.47
8.1.190.0060.00317.60
8.1.180.0000.00818.10
8.1.170.0030.00618.76
8.1.160.0050.00322.20
8.1.150.0040.00418.69
8.1.140.0040.00417.50
8.1.130.0000.00717.88
8.1.120.0050.00317.51
8.1.110.0050.00217.47
8.1.100.0070.00017.41
8.1.90.0040.00417.50
8.1.80.0000.00717.53
8.1.70.0000.00717.48
8.1.60.0030.00617.62
8.1.50.0080.00017.58
8.1.40.0030.00617.55
8.1.30.0000.00817.70
8.1.20.0040.00417.56
8.1.10.0030.00617.70
8.1.00.0000.00717.47
8.0.300.0040.00418.77
8.0.290.0080.00016.73
8.0.280.0030.00318.43
8.0.270.0000.00717.43
8.0.260.0000.00616.88
8.0.250.0070.00017.00
8.0.240.0000.00917.02
8.0.230.0000.00816.92
8.0.220.0070.00016.89
8.0.210.0000.00716.85
8.0.200.0060.00017.02
8.0.190.0060.00317.01
8.0.180.0040.00417.04
8.0.170.0050.00216.95
8.0.160.0000.00816.93
8.0.150.0000.00716.97
8.0.140.0040.00416.94
8.0.130.0030.00613.32
8.0.120.0000.00816.88
8.0.110.0040.00416.91
8.0.100.0040.00416.94
8.0.90.0040.00416.75
8.0.80.0060.00917.00
8.0.70.0000.00816.85
8.0.60.0000.00816.89
8.0.50.0030.00516.75
8.0.30.0120.00916.99
8.0.20.0120.00817.40
8.0.10.0070.00016.98
8.0.00.0110.01216.93
7.4.330.0000.00516.79
7.4.320.0030.00316.54
7.4.300.0040.00416.71
7.4.290.0070.00016.57
7.4.280.0040.00416.67
7.4.270.0070.00016.57
7.4.260.0000.00513.27
7.4.250.0070.00016.62
7.4.240.0020.00616.58
7.4.230.0040.00416.53
7.4.220.0070.01116.60
7.4.210.0070.00916.58
7.4.200.0040.00416.67
7.4.190.0080.00016.64
7.4.160.0040.01516.57
7.4.150.0090.01217.40
7.4.140.0070.01117.86
7.4.130.0080.00916.62
7.4.120.0130.00416.59
7.4.110.0100.00716.37
7.4.100.0090.00916.52
7.4.90.0070.01016.63
7.4.80.0030.01519.39
7.4.70.0170.00716.69
7.4.60.0100.00716.63
7.4.50.0030.00616.63
7.4.40.0100.00322.77
7.4.30.0090.00916.50
7.4.00.0050.01314.98
7.3.330.0000.00513.38
7.3.320.0000.00513.39
7.3.310.0000.00816.37
7.3.300.0000.00716.38
7.3.290.0060.00616.36
7.3.280.0080.00816.36
7.3.270.0090.00917.40
7.3.260.0100.00718.24
7.3.250.0110.01016.47
7.3.240.0100.00716.29
7.3.230.0040.01216.63
7.3.210.0070.01016.47
7.3.200.0130.00919.39
7.3.190.0100.01016.66
7.3.180.0000.02116.39
7.3.170.0160.00016.65
7.3.160.0110.00816.60
7.3.120.0070.00714.90
7.3.110.0150.00414.56
7.3.100.0080.00614.90
7.3.90.0120.00315.00
7.3.80.0100.00314.74
7.3.70.0060.00614.64
7.3.60.0050.00514.98
7.3.50.0030.00614.83
7.3.40.0000.01414.97
7.3.30.0060.00614.98
7.3.20.0100.00416.79
7.3.10.0040.01116.39
7.3.00.0030.01016.45
7.2.330.0150.00416.78
7.2.320.0060.01516.83
7.2.310.0100.01416.82
7.2.300.0110.00716.47
7.2.290.0060.01116.90
7.2.250.0040.01515.06
7.2.240.0170.00315.15
7.2.230.0000.01715.35
7.2.220.0030.00714.96
7.2.210.0060.01015.11
7.2.200.0060.00615.12
7.2.190.0030.01014.87
7.2.180.0000.01215.04
7.2.170.0060.00915.13
7.2.60.0000.01217.03
7.2.00.0000.01219.19
7.1.330.0030.01015.57
7.1.320.0110.00316.10
7.1.310.0030.00715.95
7.1.300.0040.00815.91
7.1.290.0100.00315.84
7.1.280.0000.00915.66
7.1.270.0040.01115.65
7.1.260.0000.01316.01
7.1.200.0060.00915.59
7.1.100.0040.01118.13
7.1.70.0090.01216.92
7.1.60.0000.01017.05
7.1.50.0090.00317.00
7.1.00.0070.03722.31
7.0.200.0070.00016.76
7.0.140.0030.07322.15
7.0.60.0100.04019.99
7.0.50.0130.08017.98
7.0.40.0200.04020.13
7.0.30.0270.07020.17
7.0.20.0130.05720.24
7.0.10.0500.06320.35
7.0.00.0130.06720.26
5.6.210.0070.03720.49
5.6.200.0030.04318.21
5.6.190.0130.08320.41
5.6.180.0070.03720.62
5.6.170.0470.06320.55
5.6.160.0070.07720.46
5.6.150.0130.08018.19
5.6.140.0130.03318.23
5.6.130.0170.06018.18
5.6.120.0070.08321.14
5.6.110.0000.08721.11
5.6.100.0130.06721.16
5.6.90.0070.08021.00
5.6.80.0100.07020.43
5.6.70.0200.06320.30
5.5.350.0270.07020.45
5.5.340.0070.06718.02
5.5.330.0030.04320.45
5.5.320.0030.05020.32
5.5.310.0230.03320.28
5.5.300.0030.04017.93
5.5.290.0070.07717.95
5.5.280.0200.05020.64
5.5.270.0170.07720.81
5.5.260.0100.07020.77
5.5.250.0100.07320.80
5.5.240.0130.07320.18
5.4.450.0330.06719.49
5.4.440.0330.06319.29
5.4.430.0330.06719.46
5.4.420.0230.03719.31
5.4.410.0270.07019.19
5.4.400.0300.05319.00
5.4.390.0330.06319.24
5.4.380.0300.06018.86
5.4.370.0230.05318.87
5.4.360.0230.07319.07
5.4.350.0270.04719.25
5.4.340.0130.05719.13
5.4.320.0270.03319.22
5.4.310.0200.07319.09
5.4.300.0230.06319.04
5.4.290.0370.05718.98
5.4.280.0230.04019.22
5.4.270.0230.07319.08
5.4.260.0330.06019.21
5.4.250.0330.06719.30
5.4.240.0230.07019.22
5.4.230.0270.04018.86
5.4.220.0270.07019.13
5.4.210.0230.05319.10
5.4.200.0270.04019.22
5.4.190.0270.07718.84
5.4.180.0200.07319.05
5.4.170.0270.04319.14
5.4.160.0200.04019.29
5.4.150.0230.06318.97
5.4.140.0230.03716.55
5.4.130.0130.03716.43
5.4.120.0100.04016.46
5.4.110.0200.03716.51
5.4.100.0300.02716.45
5.4.90.0170.03716.30
5.4.80.0170.03016.49
5.4.70.0170.03016.22
5.4.60.0230.03016.36
5.4.50.0170.03716.27
5.4.40.0170.03016.16
5.4.30.0070.04016.44
5.4.20.0200.03316.27
5.4.10.0200.03016.38
5.4.00.0170.03015.82
5.3.290.0370.04014.70
5.3.280.0270.03714.85
5.3.270.0270.07014.75
5.3.260.0300.05014.65
5.3.250.0170.03714.71
5.3.240.0170.03714.55
5.3.230.0230.04014.85
5.3.220.0170.03714.67
5.3.210.0100.04014.60
5.3.200.0230.03714.58
5.3.190.0130.03714.66
5.3.180.0170.03314.49
5.3.170.0170.03314.61
5.3.160.0100.04314.61
5.3.150.0200.03014.57
5.3.140.0170.03314.63
5.3.130.0170.03314.73
5.3.120.0200.03014.59
5.3.110.0130.03714.69
5.3.100.0100.04314.14
5.3.90.0100.04014.05
5.3.80.0170.03314.09
5.3.70.0070.04314.05
5.3.60.0130.03714.04
5.3.50.0170.03714.03
5.3.40.0270.03013.97
5.3.30.0200.04013.95
5.3.20.0100.03713.64
5.3.10.0170.03313.66
5.3.00.0100.04313.58
5.2.170.0170.03012.97
5.2.160.0130.02712.97
5.2.150.0170.02712.97
5.2.140.0100.03712.97
5.2.130.0170.02712.97
5.2.120.0030.03312.97
5.2.110.0170.04012.97
5.2.100.0100.03012.97
5.2.90.0100.02712.97
5.2.80.0130.03312.97
5.2.70.0170.02312.97
5.2.60.0130.02712.97
5.2.50.0100.03012.97
5.2.40.0100.04712.97
5.2.30.0100.03312.97
5.2.20.0170.03312.97
5.2.10.0170.04712.97
5.2.00.0170.05012.97
5.1.60.0170.05312.97
5.1.50.0130.04312.97
5.1.40.0170.05012.97
5.1.30.0170.05312.97
5.1.20.0200.04712.97
5.1.10.0170.05312.97
5.1.00.0170.04012.97
5.0.50.0130.04012.97
5.0.40.0070.03012.97
5.0.30.0070.05712.97
5.0.20.0130.04012.97
5.0.10.0100.04312.97
5.0.00.0070.05012.97
4.4.90.0070.01312.97
4.4.80.0070.01312.97
4.4.70.0130.03012.97
4.4.60.0070.02712.97
4.4.50.0070.01312.97
4.4.40.0130.04712.97
4.4.30.0100.03312.97
4.4.20.0070.02712.97
4.4.10.0130.03012.97
4.4.00.0130.04712.97
4.3.110.0070.03712.97
4.3.100.0130.02712.97
4.3.90.0130.03012.97
4.3.80.0130.04712.97
4.3.70.0100.02712.97
4.3.60.0130.03312.97
4.3.50.0070.03312.97
4.3.40.0070.05312.97
4.3.30.0100.03012.97
4.3.20.0070.03012.97
4.3.10.0030.02012.97
4.3.00.0070.03712.97

preferences:
49.83 ms | 401 KiB | 5 Q