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) { $result = -1; } if ($str3 > $str4) { if ($result == -1) {echo "Serious error detected, keep on trucking!\n";} $result = 1; } 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)
8.3.60.0070.01418.68
8.3.50.0070.00922.92
8.3.40.0040.01118.88
8.3.30.0070.00719.29
8.3.20.0050.00320.20
8.3.10.0000.00823.51
8.3.00.0060.00319.51
8.2.180.0070.01016.88
8.2.170.0060.01522.96
8.2.160.0080.01220.57
8.2.150.0040.01224.18
8.2.140.0190.00024.66
8.2.130.0030.00626.16
8.2.120.0030.00621.03
8.2.110.0000.01020.43
8.2.100.0040.00818.04
8.2.90.0040.00418.28
8.2.80.0040.00417.97
8.2.70.0090.00017.75
8.2.60.0000.00918.04
8.2.50.0040.00418.07
8.2.40.0050.00318.28
8.2.30.0000.00818.05
8.2.20.0000.00717.70
8.2.10.0050.00318.07
8.2.00.0000.00817.66
8.1.280.0160.00325.92
8.1.270.0060.00323.77
8.1.260.0050.00326.35
8.1.250.0100.00728.09
8.1.240.0060.00322.02
8.1.230.0090.00320.70
8.1.220.0030.00517.76
8.1.210.0040.00418.88
8.1.200.0070.00317.36
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0030.00618.71
8.1.160.0000.00822.05
8.1.150.0030.00318.85
8.1.140.0040.00417.53
8.1.130.0000.00717.87
8.1.120.0020.00517.47
8.1.110.0040.00417.46
8.1.100.0080.00017.54
8.1.90.0040.00417.48
8.1.80.0070.00017.38
8.1.70.0030.00317.50
8.1.60.0000.01317.61
8.1.50.0030.00517.55
8.1.40.0040.00417.56
8.1.30.0030.00517.52
8.1.20.0080.00017.60
8.1.10.0000.00817.61
8.1.00.0040.00417.50
8.0.300.0040.00420.16
8.0.290.0000.00816.88
8.0.280.0030.00318.49
8.0.270.0000.00717.17
8.0.260.0070.00017.25
8.0.250.0050.00317.13
8.0.240.0040.00416.98
8.0.230.0030.00316.95
8.0.220.0040.00416.91
8.0.210.0070.00017.03
8.0.200.0040.00417.08
8.0.190.0040.00416.96
8.0.180.0020.00517.08
8.0.170.0030.00516.93
8.0.160.0040.00417.11
8.0.150.0050.00216.91
8.0.140.0040.00417.00
8.0.130.0030.00613.39
8.0.120.0080.00016.97
8.0.110.0000.00716.96
8.0.100.0040.00416.86
8.0.90.0040.00416.79
8.0.80.0160.00617.05
8.0.70.0000.00816.93
8.0.60.0030.00517.04
8.0.50.0030.00517.00
8.0.30.0100.01017.30
8.0.20.0120.00917.41
8.0.10.0040.00417.23
8.0.00.0160.00816.58
7.4.330.0050.00015.00
7.4.320.0070.00016.66
7.4.300.0060.00016.45
7.4.290.0030.00316.64
7.4.280.0050.00316.52
7.4.270.0050.00216.53
7.4.260.0000.00716.39
7.4.250.0000.00816.52
7.4.240.0030.00316.55
7.4.230.0030.00316.71
7.4.220.0060.01416.56
7.4.210.0060.00916.66
7.4.200.0000.00716.71
7.4.160.0070.01116.54
7.4.150.0060.01417.40
7.4.140.0080.00917.86
7.4.130.0090.00916.64
7.4.120.0110.00916.51
7.4.110.0070.01016.63
7.4.100.0030.01616.75
7.4.90.0180.00016.59
7.4.80.0070.01416.43
7.4.70.0040.01816.47
7.4.60.0110.00616.31
7.4.50.0090.00716.50
7.4.40.0070.01416.04
7.4.30.0100.01316.13
7.4.20.0090.00816.48
7.4.10.0160.00616.10
7.4.00.0120.00316.10
7.3.330.0000.00713.29
7.3.320.0000.00513.44
7.3.310.0000.00716.48
7.3.300.0000.00716.30
7.3.290.0070.01116.51
7.3.280.0100.00716.47
7.3.270.0040.01517.40
7.3.260.0150.00716.47
7.3.250.0060.01216.64
7.3.240.0140.00316.61
7.3.230.0090.00616.68
7.3.210.0060.01316.67
7.3.200.0060.01219.39
7.3.190.0070.01116.41
7.3.180.0080.00816.37
7.3.170.0070.01016.32
7.3.160.0110.00616.39
7.3.150.0120.00616.57
7.3.140.0130.00916.28
7.3.130.0060.01116.38
7.3.120.0090.00616.32
7.3.110.0100.00716.32
7.3.100.0120.00816.28
7.3.90.0000.01716.22
7.3.80.0140.00416.22
7.3.70.0090.00916.23
7.3.60.0080.00816.33
7.3.50.0090.00616.23
7.3.40.0130.00616.28
7.3.30.0130.00716.34
7.3.20.0120.00616.37
7.3.10.0120.00616.22
7.3.00.0060.01216.37
7.2.330.0110.00716.78
7.2.320.0090.00916.71
7.2.310.0030.01416.71
7.2.300.0070.01016.46
7.2.290.0030.01616.73
7.2.280.0100.00716.60
7.2.270.0070.01016.36
7.2.260.0120.00616.30
7.2.250.0060.01216.33
7.2.240.0100.00716.59
7.2.230.0070.01116.58
7.2.220.0110.00716.32
7.2.210.0130.00316.53
7.2.200.0150.00716.50
7.2.190.0070.01016.44
7.2.180.0060.01216.28
7.2.170.0110.01116.42
7.2.160.0160.00616.47
7.2.150.0170.01316.46
7.2.140.0140.00816.54
7.2.130.0090.00916.46
7.2.120.0090.01416.69
7.2.110.0060.01216.38
7.2.100.0040.01316.45
7.2.90.0070.01116.57
7.2.80.0090.01016.48
7.2.70.0090.00916.48
7.2.60.0090.01216.43
7.2.50.0080.00816.35
7.2.40.0110.00716.53
7.2.30.0120.00616.52
7.2.20.0110.00716.53
7.2.10.0120.01216.39
7.2.00.0030.01517.99
7.1.330.0100.01015.55
7.1.320.0110.01115.36
7.1.310.0080.00815.36
7.1.300.0100.00515.35
7.1.290.0080.00815.39
7.1.280.0120.00915.23
7.1.270.0110.00615.43
7.1.260.0130.00715.20
7.1.250.0180.00015.43
7.1.240.0040.01215.26
7.1.230.0110.00715.18
7.1.220.0090.00915.27
7.1.210.0120.00315.30
7.1.200.0100.00515.55
7.1.190.0120.00415.37
7.1.180.0110.00415.41
7.1.170.0100.00715.36
7.1.160.0080.00815.41
7.1.150.0080.00815.36
7.1.140.0060.01515.42
7.1.130.0070.01015.50
7.1.120.0110.00515.41
7.1.110.0060.01015.48
7.1.100.0150.00716.46
7.1.90.0080.00715.29
7.1.80.0100.00715.28
7.1.70.0030.00916.16
7.1.60.0120.00817.48
7.1.50.0050.01316.11
7.1.40.0090.01215.54
7.1.30.0040.01415.40
7.1.20.0030.01315.40
7.1.10.0160.00015.35
7.1.00.0050.04318.92
7.0.330.0140.00514.85
7.0.320.0080.00815.06
7.0.310.0100.00514.93
7.0.300.0040.01115.17
7.0.290.0080.00815.07
7.0.280.0110.01014.85
7.0.270.0110.00515.01
7.0.260.0130.00314.96
7.0.250.0100.00614.91
7.0.240.0130.01015.01
7.0.230.0080.00914.90
7.0.220.0090.00614.98
7.0.210.0120.00415.12
7.0.200.0080.00715.84
7.0.190.0180.00314.96
7.0.180.0030.01715.01
7.0.170.0080.00814.98
7.0.160.0070.01015.09
7.0.150.0090.00715.04
7.0.140.0070.03718.58
7.0.130.0060.00815.12
7.0.120.0030.01414.89
7.0.110.0080.00614.96
7.0.100.0000.01514.86
7.0.90.0000.01515.02
7.0.80.0030.01314.96
7.0.70.0050.01014.77
7.0.60.0110.04217.44
7.0.50.0080.04116.38
7.0.40.0130.02617.56
7.0.30.0190.01817.61
7.0.20.0170.04117.54
7.0.10.0140.03817.63
7.0.00.0080.03017.58
5.6.400.0060.01415.96
5.6.390.0160.00715.74
5.6.380.0130.00615.51
5.6.370.0090.01215.87
5.6.360.0110.00815.55
5.6.350.0100.01015.66
5.6.340.0100.00715.64
5.6.330.0070.01115.70
5.6.320.0060.01215.68
5.6.310.0000.01816.06
5.6.300.0070.01015.78
5.6.290.0060.01316.00
5.6.280.0050.04318.34
5.6.270.0090.00915.73
5.6.260.0070.01015.80
5.6.250.0070.01015.62
5.6.240.0060.01115.68
5.6.230.0040.01515.81
5.6.220.0120.00615.56
5.6.210.0070.03418.24
5.6.200.0130.04016.93
5.6.190.0070.04318.22
5.6.180.0190.02018.20
5.6.170.0210.04018.07
5.6.160.0120.03218.09
5.6.150.0060.02616.95
5.6.140.0080.04617.02
5.6.130.0140.03616.92
5.6.120.0110.02518.38
5.6.110.0030.04118.44
5.6.100.0070.04818.40
5.6.90.0050.04718.50
5.6.80.0070.02518.01
5.6.70.2190.02518.09
5.6.60.0120.00615.64
5.6.50.0090.00915.68
5.6.40.0040.01615.63
5.6.30.0060.01215.55
5.6.20.0100.00715.59
5.6.10.0090.01015.67
5.6.00.0030.01415.58
5.5.380.0090.01315.57
5.5.370.0130.01415.85
5.5.360.0060.01415.73
5.5.350.0150.03718.00
5.5.340.0100.02316.84
5.5.330.0050.04517.91
5.5.320.0030.02518.08
5.5.310.0220.02518.09
5.5.300.0080.04516.78
5.5.290.0150.04216.97
5.5.280.0070.04818.21
5.5.270.0080.05318.20
5.5.260.0120.03518.17
5.5.250.0120.03918.22
5.5.240.0120.02017.98
5.5.230.0070.01015.66
5.5.220.0110.00715.55
5.5.210.0000.01815.66
5.5.200.0060.01615.83
5.5.190.0140.00615.53
5.5.180.0120.00815.82
5.5.170.0110.00715.55
5.5.160.0030.01415.43
5.5.150.0060.01215.91
5.5.140.0090.00915.62
5.5.130.0110.00715.61
5.5.120.0090.00915.38
5.5.110.0090.00915.39
5.5.100.0000.02615.59
5.5.90.0090.00915.93
5.5.80.0030.01715.75
5.5.70.0070.01715.70
5.5.60.0040.01415.83
5.5.50.0130.00415.65
5.5.40.0000.01815.80
5.5.30.0100.00715.48
5.5.20.0000.01715.80
5.5.10.0060.01215.84
5.5.00.0120.01315.38
5.4.450.0110.02715.92
5.4.440.0110.02816.07
5.4.430.0170.02716.04
5.4.420.0070.02416.04
5.4.410.0050.03015.92
5.4.400.0100.02415.96
5.4.390.0160.01915.77
5.4.380.0170.03515.56
5.4.370.0300.02715.52
5.4.360.0230.02715.73
5.4.350.0260.04315.47
5.4.340.0250.04315.65
5.4.330.0140.00012.56
5.4.320.0070.02112.58
5.4.310.0120.02512.59
5.4.300.0110.02512.55
5.4.290.0090.02012.47
5.4.280.0080.02012.46
5.4.270.0050.02512.42
5.4.260.0130.02412.39
5.4.250.0080.02712.46
5.4.240.0080.02312.51
5.4.230.0090.02212.47
5.4.220.0030.02512.53
5.4.210.0050.02312.43
5.4.200.0050.02312.40
5.4.190.0110.02012.54
5.4.180.0080.02512.53
5.4.170.0080.02112.46
5.4.160.0040.02412.49
5.4.150.0070.02212.45
5.4.140.0060.02512.34
5.4.130.0060.02312.38
5.4.120.0070.02112.48
5.4.110.0090.02212.35
5.4.100.0060.02512.23
5.4.90.0080.02312.32
5.4.80.0070.02212.38
5.4.70.0080.02112.34
5.4.60.0070.02112.35
5.4.50.0070.02212.25
5.4.40.0070.02012.35
5.4.30.0040.02412.23
5.4.20.0060.02212.31
5.4.10.0060.02212.37
5.4.00.0110.01712.04
5.3.290.0100.02313.00
5.3.280.0080.02112.94
5.3.270.0080.03012.99
5.3.260.0080.03212.97
5.3.250.0100.02712.92
5.3.240.0100.02612.82
5.3.230.0050.03012.95
5.3.220.0100.02912.84
5.3.210.0090.03112.97
5.3.200.0120.02712.84
5.3.190.0080.02612.91
5.3.180.0080.02112.98
5.3.170.0070.02212.95
5.3.160.0060.02312.94
5.3.150.0070.02912.93
5.3.140.0070.02312.89
5.3.130.0040.02612.88
5.3.120.0060.02412.91
5.3.110.0120.02012.97
5.3.100.0050.02312.64
5.3.90.0050.02412.63
5.3.80.0060.02412.63
5.3.70.0120.01612.62
5.3.60.0060.02512.61
5.3.50.0040.02412.61
5.3.40.0080.02212.56
5.3.30.0080.02112.68
5.3.20.0080.02012.41
5.3.10.0050.02312.35
5.3.00.0100.01812.30
5.2.170.0070.01710.65
5.2.160.0060.01810.65
5.2.150.0100.01610.73
5.2.140.0090.01810.61
5.2.130.0040.02010.56
5.2.120.0030.02010.66
5.2.110.0070.01710.63
5.2.100.0060.01910.74
5.2.90.0070.01710.65
5.2.80.0070.02010.52
5.2.70.0070.02010.54
5.2.60.0050.02710.56
5.2.50.0050.02510.55
5.2.40.0080.02410.57
5.2.30.0090.02110.61
5.2.20.0070.02010.42
5.2.10.0050.01910.34
5.2.00.0050.02010.22
5.1.60.0050.0179.55
5.1.50.0070.0189.56
5.1.40.0060.0209.66
5.1.30.0050.0229.80
5.1.20.0040.0249.84
5.1.10.0070.0199.63
5.1.00.0080.0219.69
5.0.50.0020.0218.40
5.0.40.0060.0178.34
5.0.30.0040.0268.24
5.0.20.0020.0178.22
5.0.10.0040.0138.21
5.0.00.0050.0178.21
4.4.90.0040.0097.46
4.4.80.0050.0107.45
4.4.70.0030.0117.45
4.4.60.0040.0097.45
4.4.50.0040.0107.46
4.4.40.0060.0127.43
4.4.30.0030.0107.45
4.4.20.0030.0107.49
4.4.10.0020.0117.49
4.4.00.0030.0147.45
4.3.110.0030.0107.41
4.3.100.0040.0097.40
4.3.90.0010.0117.39
4.3.80.0050.0127.36
4.3.70.0030.0097.38
4.3.60.0050.0077.38
4.3.50.0030.0097.38
4.3.40.0040.0137.34
4.3.30.0020.0106.74
4.3.20.0010.0116.73
4.3.10.0030.0096.71
4.3.00.0010.00814.19

preferences:
48.73 ms | 401 KiB | 5 Q