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";} $result = 1; } if ($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)
8.3.60.0100.01018.55
8.3.50.0030.01719.64
8.3.40.0060.00918.79
8.3.30.0110.00419.21
8.3.20.0000.00720.39
8.3.10.0000.00823.48
8.3.00.0040.01119.38
8.2.180.0150.00416.75
8.2.170.0060.01222.96
8.2.160.0030.01020.39
8.2.150.0070.01324.18
8.2.140.0100.01024.66
8.2.130.0120.00626.16
8.2.120.0000.00721.16
8.2.110.0090.00020.58
8.2.100.0130.00018.34
8.2.90.0080.00019.30
8.2.80.0000.00817.97
8.2.70.0030.00517.36
8.2.60.0000.00817.93
8.2.50.0080.00018.07
8.2.40.0060.00318.16
8.2.30.0030.00618.16
8.2.20.0070.00017.86
8.2.10.0050.00318.14
8.2.00.0000.00717.85
8.1.280.0070.01425.92
8.1.270.0000.00923.78
8.1.260.0040.00426.35
8.1.250.0070.01128.09
8.1.240.0000.01022.26
8.1.230.0080.00319.21
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0090.00317.36
8.1.190.0080.00017.48
8.1.180.0000.00818.10
8.1.170.0050.00318.57
8.1.160.0040.00422.04
8.1.150.0040.00418.96
8.1.140.0040.00417.58
8.1.130.0030.00717.77
8.1.120.0050.00317.44
8.1.110.0080.00017.53
8.1.100.0000.00817.46
8.1.90.0050.00217.50
8.1.80.0000.00817.49
8.1.70.0030.00317.48
8.1.60.0080.00417.60
8.1.50.0000.00717.62
8.1.40.0050.00317.51
8.1.30.0040.00417.59
8.1.20.0000.00817.58
8.1.10.0040.00417.63
8.1.00.0000.00817.52
8.0.300.0040.00418.77
8.0.290.0040.00416.88
8.0.280.0030.00318.44
8.0.270.0000.00717.34
8.0.260.0030.00317.34
8.0.250.0000.00717.01
8.0.240.0030.00516.98
8.0.230.0000.00817.03
8.0.220.0040.00416.94
8.0.210.0000.00717.04
8.0.200.0060.00017.16
8.0.190.0040.00417.05
8.0.180.0050.00216.94
8.0.170.0070.00017.04
8.0.160.0040.00416.94
8.0.150.0030.00516.88
8.0.140.0040.00416.89
8.0.130.0000.00713.52
8.0.120.0050.00317.03
8.0.110.0040.00417.11
8.0.100.0040.00416.91
8.0.90.0000.00716.86
8.0.80.0080.00716.98
8.0.70.0020.00517.09
8.0.60.0070.00016.91
8.0.50.0070.00016.92
8.0.30.0170.00617.16
8.0.20.0150.00617.44
8.0.10.0030.00517.16
8.0.00.0100.01116.65
7.4.330.0000.00515.06
7.4.320.0050.00216.47
7.4.300.0000.00716.59
7.4.290.0030.00316.64
7.4.280.0030.00316.61
7.4.270.0030.00316.68
7.4.260.0000.00816.63
7.4.250.0080.00016.54
7.4.240.0050.00316.66
7.4.230.0070.00016.70
7.4.220.0110.00716.59
7.4.210.0070.01416.48
7.4.200.0000.00716.70
7.4.160.0030.01316.71
7.4.150.0130.00717.40
7.4.140.0130.00717.86
7.4.130.0130.00816.73
7.4.120.0120.00616.68
7.4.110.0120.01216.60
7.4.100.0060.01316.61
7.4.90.0170.00616.56
7.4.80.0070.01016.74
7.4.70.0150.00316.63
7.4.60.0090.00916.40
7.4.50.0060.00916.44
7.4.40.0120.00616.25
7.4.30.0030.01416.19
7.4.20.0170.00616.43
7.4.10.0060.01115.76
7.4.00.0120.00715.50
7.3.330.0000.00613.41
7.3.320.0050.00013.25
7.3.310.0000.00916.44
7.3.300.0030.00316.52
7.3.290.0100.01116.40
7.3.280.0080.00916.48
7.3.270.0060.01517.40
7.3.260.0080.01216.65
7.3.250.0120.00516.59
7.3.240.0090.00916.69
7.3.230.0060.01116.50
7.3.210.0110.00816.59
7.3.200.0140.00819.39
7.3.190.0090.00916.69
7.3.180.0050.01216.32
7.3.170.0110.00516.27
7.3.160.0090.01016.31
7.3.150.0180.00016.41
7.3.140.0100.00716.43
7.3.130.0060.01115.42
7.3.120.0080.01115.31
7.3.110.0060.01115.17
7.3.100.0050.01115.31
7.3.90.0060.00815.33
7.3.80.0090.00515.32
7.3.70.0060.00915.16
7.3.60.0070.00615.26
7.3.50.0080.00615.15
7.3.40.0040.01015.25
7.3.30.0060.01014.97
7.3.20.0030.01116.63
7.3.10.0080.00816.33
7.3.00.0050.00916.59
7.2.330.0060.01116.88
7.2.320.0070.01016.88
7.2.310.0100.01016.74
7.2.300.0080.01116.45
7.2.290.0000.01716.35
7.2.280.0110.00716.50
7.2.270.0190.00316.34
7.2.260.0060.01315.53
7.2.250.0060.01215.37
7.2.240.0050.01415.37
7.2.230.0070.00915.51
7.2.220.0080.00815.47
7.2.210.0050.00915.24
7.2.200.0040.01215.38
7.2.190.0080.00915.40
7.2.180.0050.00815.35
7.2.170.0040.01215.38
7.2.160.0060.00815.45
7.2.150.0070.01016.63
7.2.140.0070.01016.64
7.2.130.0110.00616.71
7.2.120.0060.01016.72
7.2.110.0100.00716.72
7.2.100.0100.00616.86
7.2.90.0090.01016.81
7.2.80.0080.01016.64
7.2.70.0060.00716.81
7.2.60.0130.00816.89
7.2.50.0070.00916.77
7.2.40.0060.00816.65
7.2.30.0080.00716.65
7.2.20.0130.00316.75
7.2.10.0070.00816.59
7.2.00.0040.01017.39
7.1.330.0040.01215.65
7.1.320.0070.00815.69
7.1.310.0070.00915.67
7.1.300.0080.00515.58
7.1.290.0080.00515.55
7.1.280.0060.00815.71
7.1.270.0090.00515.59
7.1.260.0060.00715.63
7.1.250.0070.00715.74
7.1.240.0040.00715.60
7.1.230.0060.00715.51
7.1.220.0070.00715.64
7.1.210.0060.01015.59
7.1.200.0080.00615.57
7.1.190.0050.00715.56
7.1.180.0080.00715.65
7.1.170.0120.00415.41
7.1.160.0050.00915.59
7.1.150.0100.00515.51
7.1.140.0070.00915.65
7.1.130.0070.00715.50
7.1.120.0060.00915.55
7.1.110.0060.00715.70
7.1.100.0120.00716.09
7.1.90.0100.00815.53
7.1.80.0050.01115.61
7.1.70.0070.00915.95
7.1.60.0070.01116.60
7.1.50.0110.00615.91
7.1.40.0040.00915.45
7.1.30.0080.00915.66
7.1.20.0080.00615.68
7.1.10.0070.00815.47
7.1.00.0050.02517.35
7.0.330.0100.00315.16
7.0.320.0080.00515.19
7.0.310.0050.00615.29
7.0.300.0030.01015.06
7.0.290.0050.00915.34
7.0.280.0060.00815.34
7.0.270.0050.00815.19
7.0.260.0050.00715.19
7.0.250.0050.00915.38
7.0.240.0110.01015.16
7.0.230.0090.00515.26
7.0.220.0120.00515.18
7.0.210.0070.00915.16
7.0.200.0060.00815.56
7.0.190.0080.00815.25
7.0.180.0100.00515.18
7.0.170.0080.00615.28
7.0.160.0070.00815.24
7.0.150.0030.01115.19
7.0.140.0080.02016.98
7.0.130.0050.01115.25
7.0.120.0060.00815.17
7.0.110.0080.00815.11
7.0.100.0040.01015.08
7.0.90.0080.00615.29
7.0.80.0100.00615.24
7.0.70.0050.00815.25
7.0.60.0090.02716.39
7.0.50.0050.02615.91
7.0.40.0050.02715.58
7.0.30.0200.02215.46
7.0.20.0110.01515.42
7.0.10.0110.02415.37
7.0.00.0090.02315.45
5.6.400.0020.01415.04
5.6.390.0080.00914.79
5.6.380.0110.00414.82
5.6.370.0070.01015.00
5.6.360.0060.01114.90
5.6.350.0080.00515.04
5.6.340.0020.01414.84
5.6.330.0060.00515.02
5.6.320.0090.00814.99
5.6.310.0090.00914.92
5.6.300.0040.01314.99
5.6.290.0060.01014.75
5.6.280.0040.02716.50
5.6.270.0120.00714.67
5.6.260.0090.01114.72
5.6.250.0090.00914.83
5.6.240.0100.00514.88
5.6.230.0050.01014.62
5.6.220.0040.01214.75
5.6.210.0070.02716.26
5.6.200.0070.02715.61
5.6.190.0060.02716.22
5.6.180.0140.02016.31
5.6.170.0110.02516.27
5.6.160.0060.01616.34
5.6.150.0060.01515.66
5.6.140.0100.02315.90
5.6.130.0070.02615.72
5.6.120.0070.01816.39
5.6.110.0070.01716.38
5.6.100.0080.02516.35
5.6.90.0030.02216.31
5.6.80.0030.01816.15
5.6.70.1220.01716.08
5.6.60.0030.01414.82
5.6.50.0040.00814.93
5.6.40.0070.00814.91
5.6.30.0090.00614.77
5.6.20.0080.00814.77
5.6.10.0050.00814.72
5.6.00.0070.00714.79
5.5.380.0090.00814.88
5.5.370.0050.01114.83
5.5.360.0070.00914.87
5.5.350.0090.02216.10
5.5.340.0070.02715.50
5.5.330.0080.02716.19
5.5.320.0060.02816.09
5.5.310.0100.02016.18
5.5.300.0040.02715.67
5.5.290.0070.02315.59
5.5.280.0100.01916.30
5.5.270.0100.02016.23
5.5.260.0090.02416.28
5.5.250.0070.02816.20
5.5.240.0100.02416.04
5.5.230.0040.01214.72
5.5.220.0080.00814.87
5.5.210.0060.00914.86
5.5.200.0090.00614.67
5.5.190.0050.01114.63
5.5.180.0080.00814.91
5.5.170.0130.00514.81
5.5.160.0060.01014.81
5.5.150.0050.01014.70
5.5.140.0110.00714.52
5.5.130.0050.01114.75
5.5.120.0020.01514.77
5.5.110.0090.00914.70
5.5.100.0060.00914.79
5.5.90.0070.00714.75
5.5.80.0120.00414.72
5.5.70.0080.00814.75
5.5.60.0080.00814.75
5.5.50.0100.00614.77
5.5.40.0050.01014.95
5.5.30.0060.00814.68
5.5.20.0070.00814.77
5.5.10.0100.00814.59
5.5.00.0070.00914.73
5.4.450.0160.01613.46
5.4.440.0090.01413.63
5.4.430.0180.01113.50
5.4.420.0070.01513.53
5.4.410.0080.01613.65
5.4.400.0050.01813.50
5.4.390.0070.01613.66
5.4.380.0110.01913.26
5.4.370.0120.01913.29
5.4.360.0130.01713.38
5.4.350.0150.01713.33
5.4.340.0160.01613.49
5.4.330.0090.00211.64
5.4.320.0070.01111.81
5.4.310.0030.01811.87
5.4.300.0040.01711.82
5.4.290.0040.01711.71
5.4.280.0050.01411.83
5.4.270.0040.01511.72
5.4.260.0050.01511.75
5.4.250.0050.01511.70
5.4.240.0040.01511.84
5.4.230.0050.01311.69
5.4.220.0070.01411.79
5.4.210.0030.01511.60
5.4.200.0060.01411.86
5.4.190.0060.01411.82
5.4.180.0080.01211.74
5.4.170.0070.01711.77
5.4.160.0070.01411.73
5.4.150.0030.01711.71
5.4.140.0050.01611.60
5.4.130.0070.01211.63
5.4.120.0040.01411.77
5.4.110.0060.01311.78
5.4.100.0070.01311.69
5.4.90.0040.01511.74
5.4.80.0070.01211.67
5.4.70.0030.01411.71
5.4.60.0040.01411.58
5.4.50.0070.01211.73
5.4.40.0060.01311.70
5.4.30.0070.01611.69
5.4.20.0070.01511.62
5.4.10.0060.01711.75
5.4.00.0040.01611.51
5.3.290.0090.02913.06
5.3.280.0080.02112.94
5.3.270.0090.02212.90
5.3.260.0040.02712.92
5.3.250.0060.02412.92
5.3.240.0050.03312.89
5.3.230.0080.02912.89
5.3.220.0040.02812.92
5.3.210.0070.02412.84
5.3.200.0080.02112.82
5.3.190.0070.02912.93
5.3.180.0110.02712.91
5.3.170.0120.02612.92
5.3.160.0040.03412.91
5.3.150.0110.02812.99
5.3.140.0130.02612.91
5.3.130.0050.03112.89
5.3.120.0050.03212.96
5.3.110.0070.03012.94
5.3.100.0070.02712.69
5.3.90.0060.03712.61
5.3.80.0070.03512.63
5.3.70.0090.02712.63
5.3.60.0060.02912.66
5.3.50.0060.02812.54
5.3.40.0060.02812.53
5.3.30.0060.02812.62
5.3.20.0070.03212.46
5.3.10.0070.03312.38
5.3.00.0070.03312.36
5.2.170.0080.02310.72
5.2.160.0090.02210.79
5.2.150.0080.02410.65
5.2.140.0090.02210.61
5.2.130.0080.02310.56
5.2.120.0100.02610.60
5.2.110.0050.02510.59
5.2.100.0060.02310.59
5.2.90.0070.02510.57
5.2.80.0050.02510.54
5.2.70.0070.02410.60
5.2.60.0070.02510.48
5.2.50.0080.02210.52
5.2.40.0040.02010.50
5.2.30.0060.01910.53
5.2.20.0050.01910.46
5.2.10.0030.01910.41
5.2.00.0040.01910.31
5.1.60.0040.0179.54
5.1.50.0080.0159.58
5.1.40.0010.0239.63
5.1.30.0070.0159.81
5.1.20.0040.0179.79
5.1.10.0050.0179.80
5.1.00.0080.0139.54
5.0.50.0070.0128.40
5.0.40.0060.0118.34
5.0.30.0070.0178.24
5.0.20.0040.0138.22
5.0.10.0070.0138.22
5.0.00.0090.0198.21
4.4.90.0040.0097.46
4.4.80.0040.0127.45
4.4.70.0020.0127.45
4.4.60.0000.0127.45
4.4.50.0060.0077.46
4.4.40.0040.0137.43
4.4.30.0020.0107.45
4.4.20.0030.0117.49
4.4.10.0010.0127.49
4.4.00.0040.0147.45
4.3.110.0020.0107.40
4.3.100.0030.0107.40
4.3.90.0020.0107.39
4.3.80.0050.0137.36
4.3.70.0020.0107.39
4.3.60.0050.0107.38
4.3.50.0040.0097.38
4.3.40.0020.0167.34
4.3.30.0040.0096.74
4.3.20.0020.0136.73
4.3.10.0050.0126.71
4.3.00.0000.01314.19

preferences:
63.9 ms | 400 KiB | 5 Q