3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 []= 'wello'; $var2 = 'woodbye wruel world'; $var3 = pack("n*", 0x77, 0x32 + 0x33, 0x6c, 0x6e-2, 0x6f); $var4 = pack('n*', 0x7765, 0x6c6c, 0x6f00); echo "var3 = $var3"; var_dump($var4); if ($var4 == $arr1[0]) {echo "$var3 == $arr1[0]"; } if (! strcmp($var4, $arr1[0])) { echo "got a match with strcmp"; } var_dump(poor_mans_strcmp('a', 'z')); var_dump(poor_mans_strcmp('q111f', 'fffff')); var_dump(poor_mans_strcmp($arr1, $var2)); var_dump(poor_mans_strcmp($arr1[0], $var2)); var_dump(poor_mans_strcmp($var2, $var2)); var_dump(poor_mans_strcmp($arr1[0], $var3)); var_dump(poor_mans_strcmp($arr1[0], $var4)); echo "trying the binary safe node!\n"; var_dump(poor_mans_strcmp($arr1[0], $var3, 1)); var_dump(poor_mans_strcmp($arr1[0], $var4, 1)); function poor_mans_strcmp($str1, $str2, $binary_safe = 0) { # use old shell programming trick $str3 = 'a' . $str1; $str4 = 'a' . $str2; if ($binary_safe) { # strip null bytes to make it binary safe! $str3 = str_replace(chr(0), '', $str3); $str4 = str_replace(chr(0), '', $str4); } var_dump($str3, $str4); $result = 0; if ($str3 < $str4) { echo "$str1 is LESSTHAN $str2\n"; $result = -1; } if ($str3 > $str4) { if ($result == -1) {echo "Serious error detected, keep on trucking!\n";} $result = 1; echo "$str1 is GREATERTHAN $str2\n"; } if ($result == 0) {echo "MATCH: $str1 with $str2\n";} return $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)
8.3.60.0030.01616.75
8.3.50.0080.01222.80
8.3.40.0160.00618.93
8.3.30.0130.00619.21
8.3.20.0040.00420.30
8.3.10.0080.00823.65
8.3.00.0000.00819.63
8.2.180.0060.00916.63
8.2.170.0120.00622.96
8.2.160.0130.00720.41
8.2.150.0120.00324.18
8.2.140.0110.00724.66
8.2.130.0100.00726.16
8.2.120.0080.00021.11
8.2.110.0100.00020.39
8.2.100.0060.00618.22
8.2.90.0030.00519.34
8.2.80.0080.00017.97
8.2.70.0040.00417.50
8.2.60.0000.00817.93
8.2.50.0080.00018.07
8.2.40.0050.00318.22
8.2.30.0030.00518.27
8.2.20.0000.00817.78
8.2.10.0040.00418.20
8.2.00.0040.00417.79
8.1.280.0100.00725.92
8.1.270.0030.00623.91
8.1.260.0060.00326.35
8.1.250.0070.01128.09
8.1.240.0090.00021.94
8.1.230.0030.00719.17
8.1.220.0060.00317.74
8.1.210.0050.00318.77
8.1.200.0060.00317.25
8.1.190.0060.00317.13
8.1.180.0060.00318.10
8.1.170.0000.00918.56
8.1.160.0040.00422.05
8.1.150.0000.00718.89
8.1.140.0000.00717.55
8.1.130.0070.00017.91
8.1.120.0040.00417.42
8.1.110.0040.00417.48
8.1.100.0040.00417.43
8.1.90.0080.00017.52
8.1.80.0050.00217.48
8.1.70.0030.00517.50
8.1.60.0000.01017.60
8.1.50.0070.00017.58
8.1.40.0040.00417.39
8.1.30.0040.00417.61
8.1.20.0030.00517.72
8.1.10.0040.00417.61
8.1.00.0000.00817.53
8.0.300.0040.00418.77
8.0.290.0040.00417.00
8.0.280.0070.00018.42
8.0.270.0070.00017.41
8.0.260.0030.00317.17
8.0.250.0000.00716.97
8.0.240.0000.00716.97
8.0.230.0030.00317.09
8.0.220.0000.00716.97
8.0.210.0030.00316.96
8.0.200.0030.00316.95
8.0.190.0000.00717.11
8.0.180.0040.00417.08
8.0.170.0000.00717.04
8.0.160.0080.00017.05
8.0.150.0040.00416.83
8.0.140.0000.00816.96
8.0.130.0000.00713.42
8.0.120.0050.00316.96
8.0.110.0000.00716.83
8.0.100.0050.00316.99
8.0.90.0030.00516.98
8.0.80.0130.00916.95
8.0.70.0000.00717.00
8.0.60.0030.00617.06
8.0.50.0000.00716.86
8.0.30.0140.01317.17
8.0.20.0100.01017.40
8.0.10.0000.00817.07
8.0.00.0110.01117.00
7.4.330.0030.00315.07
7.4.320.0030.00316.66
7.4.300.0060.00016.68
7.4.290.0000.00716.54
7.4.280.0000.00916.54
7.4.270.0080.00016.62
7.4.260.0030.00316.42
7.4.250.0040.00416.45
7.4.240.0030.00416.61
7.4.230.0000.00716.57
7.4.220.0080.01216.61
7.4.210.0110.00416.66
7.4.200.0070.00016.38
7.4.160.0040.01216.56
7.4.150.0090.00917.40
7.4.140.0130.00717.86
7.4.130.0080.00916.67
7.4.120.0120.00616.53
7.4.110.0110.00616.63
7.4.100.0130.01016.66
7.4.90.0200.00316.61
7.4.80.0090.03616.64
7.4.70.0070.01016.50
7.4.60.0050.01116.43
7.4.50.0040.00916.37
7.4.40.0140.00316.19
7.4.30.0030.01316.10
7.4.20.0070.01016.21
7.4.10.0080.00816.21
7.4.00.0110.00716.09
7.3.330.0060.00313.48
7.3.320.0000.00513.45
7.3.310.0000.00816.50
7.3.300.0000.00716.41
7.3.290.0120.00316.43
7.3.280.0090.00816.44
7.3.270.0110.00917.40
7.3.260.0150.01116.68
7.3.250.0110.00616.43
7.3.240.0100.00716.45
7.3.230.0080.00816.41
7.3.210.0150.00416.67
7.3.200.0190.00019.39
7.3.190.0030.02016.74
7.3.180.0070.00916.22
7.3.170.0090.00616.32
7.3.160.0070.01016.39
7.3.150.0060.01416.51
7.3.140.0060.01016.32
7.3.130.0090.01016.25
7.3.120.0120.00616.22
7.3.110.0180.00016.30
7.3.100.0090.00916.45
7.3.90.0110.00816.34
7.3.80.0150.00416.30
7.3.70.0100.01016.22
7.3.60.0040.01416.16
7.3.50.0130.00616.42
7.3.40.0110.00916.29
7.3.30.0100.00716.34
7.3.20.0100.01016.34
7.3.10.0040.01016.45
7.3.00.0060.00716.46
7.2.330.0100.01316.64
7.2.320.0100.00716.65
7.2.310.0120.00416.76
7.2.300.0110.00616.50
7.2.290.0150.00616.82
7.2.280.0090.00916.57
7.2.270.0130.00316.65
7.2.260.0080.01216.38
7.2.250.0110.00716.72
7.2.240.0080.01316.45
7.2.230.0100.01016.59
7.2.220.0080.01116.34
7.2.210.0120.00816.61
7.2.200.0100.01016.44
7.2.190.0150.00916.54
7.2.180.0090.00916.35
7.2.170.0130.00716.34
7.2.160.0100.00916.26
7.2.150.0170.00916.57
7.2.140.0200.00016.40
7.2.130.0050.00916.64
7.2.120.0040.01316.61
7.2.110.0090.00716.56
7.2.100.0060.00716.66
7.2.90.0070.01216.74
7.2.80.0090.00916.77
7.2.70.0110.00616.81
7.2.60.0090.01116.67
7.2.50.0090.01116.63
7.2.40.0080.01216.70
7.2.30.0080.01016.63
7.2.20.0070.01316.75
7.2.10.0100.00816.67
7.2.00.0070.00817.43
7.1.330.0000.01915.49
7.1.320.0070.01115.34
7.1.310.0100.00715.51
7.1.300.0100.01115.32
7.1.290.0200.00415.46
7.1.280.0070.01015.38
7.1.270.0160.00015.55
7.1.260.0060.01115.45
7.1.250.0030.00915.56
7.1.240.0100.00715.17
7.1.230.0120.00615.35
7.1.220.0000.01615.38
7.1.210.0200.00715.43
7.1.200.0130.00315.26
7.1.190.0150.00315.27
7.1.180.0000.01715.36
7.1.170.0100.00715.29
7.1.160.0090.00915.36
7.1.150.0130.01015.26
7.1.140.0100.01015.43
7.1.130.0180.00315.46
7.1.120.0030.01415.36
7.1.110.0050.01515.42
7.1.100.0190.01016.65
7.1.90.0090.00915.43
7.1.80.0050.01615.41
7.1.70.0060.00616.35
7.1.60.0080.01317.51
7.1.50.0110.00916.12
7.1.40.0040.01415.30
7.1.30.0140.00415.48
7.1.20.0110.00715.43
7.1.10.0110.00715.45
7.1.00.0120.03818.87
7.0.330.0120.00414.83
7.0.320.0130.00314.93
7.0.310.0040.01215.02
7.0.300.0100.00415.00
7.0.290.0080.00815.11
7.0.280.0140.00315.09
7.0.270.0080.00815.08
7.0.260.0080.00814.91
7.0.250.0140.00415.00
7.0.240.0200.00014.94
7.0.230.0110.00514.82
7.0.220.0130.01014.90
7.0.210.0060.00915.04
7.0.200.0080.00515.94
7.0.190.0100.00715.02
7.0.180.0030.01314.95
7.0.170.0070.01015.06
7.0.160.0090.00914.92
7.0.150.0130.00514.99
7.0.140.0080.04118.63
7.0.130.0080.00815.02
7.0.120.0060.01415.00
7.0.110.0200.00314.85
7.0.100.0170.00614.86
7.0.90.0040.01514.99
7.0.80.0070.01115.07
7.0.70.0060.01215.04
7.0.60.0100.04317.57
7.0.50.0130.04016.40
7.0.40.0070.02717.51
7.0.30.0310.04117.57
7.0.20.0160.02017.45
7.0.10.0050.02717.56
7.0.00.0080.03617.57
5.6.400.0090.00915.74
5.6.390.0130.00715.89
5.6.380.0050.01415.67
5.6.370.0040.01415.84
5.6.360.0130.00615.59
5.6.350.0040.01615.95
5.6.340.0120.00815.58
5.6.330.0150.00915.83
5.6.320.0070.01315.60
5.6.310.0040.01415.98
5.6.300.0090.01215.71
5.6.290.0130.00615.75
5.6.280.0080.05118.52
5.6.270.0070.01315.63
5.6.260.0100.01015.59
5.6.250.0080.01715.71
5.6.240.0180.00915.63
5.6.230.0060.01515.73
5.6.220.0120.00815.55
5.6.210.0090.04318.15
5.6.200.0080.04816.92
5.6.190.0060.03418.18
5.6.180.0160.03318.19
5.6.170.0270.03518.13
5.6.160.0140.02318.10
5.6.150.0120.03216.97
5.6.140.0070.02617.10
5.6.130.0090.02316.93
5.6.120.0110.02618.39
5.6.110.0050.03318.25
5.6.100.0070.03818.39
5.6.90.0060.04818.35
5.6.80.0100.02417.89
5.6.70.2370.02617.99
5.6.60.0150.00415.48
5.6.50.0050.01415.81
5.6.40.0090.00915.67
5.6.30.0130.00715.77
5.6.20.0030.01615.52
5.6.10.0060.01215.67
5.6.00.0080.01115.38
5.5.380.0100.01315.83
5.5.370.0080.01315.81
5.5.360.0150.00415.44
5.5.350.0180.04217.94
5.5.340.0050.02716.85
5.5.330.0070.05017.94
5.5.320.0070.04618.01
5.5.310.0250.04218.02
5.5.300.0010.03116.84
5.5.290.0070.02416.81
5.5.280.0100.04918.22
5.5.270.0090.04618.21
5.5.260.0090.04718.22
5.5.250.0020.05118.23
5.5.240.0220.04218.04
5.5.230.0090.01015.57
5.5.220.0070.01115.62
5.5.210.0110.00715.68
5.5.200.0090.00915.77
5.5.190.0050.01515.62
5.5.180.0060.01215.92
5.5.170.0140.00615.68
5.5.160.0130.00615.73
5.5.150.0170.00415.96
5.5.140.0110.00815.41
5.5.130.0120.00815.56
5.5.120.0080.01215.66
5.5.110.0120.00915.59
5.5.100.0080.01215.49
5.5.90.0100.01215.64
5.5.80.0110.01115.47
5.5.70.0110.01415.82
5.5.60.0110.00915.79
5.5.50.0080.01215.53
5.5.40.0100.01015.86
5.5.30.0140.00515.34
5.5.20.0040.01615.72
5.5.10.0120.00915.96
5.5.00.0110.01715.66
5.4.450.0280.02016.00
5.4.440.0220.02715.93
5.4.430.0170.02216.00
5.4.420.0140.01816.06
5.4.410.0090.03015.92
5.4.400.0090.02615.87
5.4.390.0100.02815.88
5.4.380.0200.03515.57
5.4.370.0190.03015.59
5.4.360.0160.03315.65
5.4.350.0200.03315.59
5.4.340.0290.02515.54
5.4.330.0070.00712.44
5.4.320.0040.02412.50
5.4.310.0060.02412.57
5.4.300.0110.01812.64
5.4.290.0060.02312.49
5.4.280.0070.02112.50
5.4.270.0080.02012.41
5.4.260.0080.02612.43
5.4.250.0070.02412.37
5.4.240.0040.02512.49
5.4.230.0060.02312.51
5.4.220.0040.02612.47
5.4.210.0070.02112.48
5.4.200.0070.02212.38
5.4.190.0090.02112.48
5.4.180.0090.02212.54
5.4.170.0120.01912.50
5.4.160.0100.02112.44
5.4.150.0110.02012.55
5.4.140.0070.02112.26
5.4.130.0050.02312.37
5.4.120.0080.02212.37
5.4.110.0110.02112.24
5.4.100.0070.02112.26
5.4.90.0070.02112.28
5.4.80.0050.02312.25
5.4.70.0040.02512.34
5.4.60.0060.02212.32
5.4.50.0070.02212.31
5.4.40.0080.01912.31
5.4.30.0040.02412.33
5.4.20.0060.02112.30
5.4.10.0050.02412.29
5.4.00.0040.02411.99
5.3.290.0080.02213.07
5.3.280.0120.01712.95
5.3.270.0050.02512.93
5.3.260.0080.02312.91
5.3.250.0050.02313.07
5.3.240.0070.02312.82
5.3.230.0100.02212.90
5.3.220.0070.02212.90
5.3.210.0060.02512.83
5.3.200.0080.02012.88
5.3.190.0050.03312.91
5.3.180.0070.02412.91
5.3.170.0070.02312.95
5.3.160.0020.02612.99
5.3.150.0050.02813.00
5.3.140.0060.02212.95
5.3.130.0080.02112.88
5.3.120.0060.02412.95
5.3.110.0090.02012.86
5.3.100.0080.02112.69
5.3.90.0050.02312.62
5.3.80.0070.02112.54
5.3.70.0050.02512.54
5.3.60.0070.02112.59
5.3.50.0060.02312.61
5.3.40.0050.02312.68
5.3.30.0040.02312.61
5.3.20.0100.01912.42
5.3.10.0080.01912.35
5.3.00.0070.02312.34
5.2.170.0060.01810.72
5.2.160.0030.02010.72
5.2.150.0080.01810.66
5.2.140.0060.01910.65
5.2.130.0090.01710.71
5.2.120.0090.01910.62
5.2.110.0060.01910.75
5.2.100.0030.02210.60
5.2.90.0070.01810.64
5.2.80.0050.02110.52
5.2.70.0060.01910.55
5.2.60.0020.02310.56
5.2.50.0070.01910.46
5.2.40.0080.01610.53
5.2.30.0040.02010.46
5.2.20.0030.01910.46
5.2.10.0030.01910.36
5.2.00.0060.01710.24
5.1.60.0120.0139.58
5.1.50.0060.0189.69
5.1.40.0060.0159.74
5.1.30.0010.0209.88
5.1.20.0060.0189.85
5.1.10.0040.0169.70
5.1.00.0060.0149.62
5.0.50.0030.0148.40
5.0.40.0060.0118.34
5.0.30.0040.0198.24
5.0.20.0020.0158.22
5.0.10.0020.0148.21
5.0.00.0050.0178.21
4.4.90.0030.0107.46
4.4.80.0030.0097.45
4.4.70.0020.0117.45
4.4.60.0050.0077.45
4.4.50.0020.0107.46
4.4.40.0030.0147.43
4.4.30.0020.0107.45
4.4.20.0020.0107.49
4.4.10.0050.0087.49
4.4.00.0030.0157.45
4.3.110.0040.0097.41
4.3.100.0040.0097.40
4.3.90.0010.0117.39
4.3.80.0030.0137.36
4.3.70.0040.0077.38
4.3.60.0030.0087.38
4.3.50.0020.0107.38
4.3.40.0030.0137.34
4.3.30.0040.0086.74
4.3.20.0000.0126.73
4.3.10.0030.0106.71
4.3.00.0020.00914.19

preferences:
64.39 ms | 401 KiB | 5 Q