3v4l.org

run code in 300+ PHP versions simultaneously
<?php $debug = 0; $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, $arr1[0])) { echo "got a match with strcmp"; } poor_mans_strcmp('a', 'z'); poor_mans_strcmp('q111f', 'fffff'); poor_mans_strcmp($arr1, $var2); poor_mans_strcmp($arr1[0], $var2); poor_mans_strcmp($var2, $var2); poor_mans_strcmp($arr1[0], $var3); poor_mans_strcmp($arr1[0], $var4); echo "trying the binary safe node!\n"; poor_mans_strcmp($arr1[0], $var3, 1); poor_mans_strcmp($arr1[0], $var4, 1); function poor_mans_strcmp($str1, $str2, $binary_safe = 0) { global $debug; # 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), '', $str4); } if ($debug) {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)
8.3.60.0120.00317.00
8.3.50.0040.01622.99
8.3.40.0100.01018.79
8.3.30.0060.01219.20
8.3.20.0000.00820.33
8.3.10.0050.00223.66
8.3.00.0000.00819.38
8.2.180.0070.00716.63
8.2.170.0130.01022.96
8.2.160.0140.00720.29
8.2.150.0150.00024.18
8.2.140.0040.01124.66
8.2.130.0140.00326.16
8.2.120.0080.00020.95
8.2.110.0000.00920.17
8.2.100.0040.00818.05
8.2.90.0080.00019.17
8.2.80.0080.00017.97
8.2.70.0060.00317.63
8.2.60.0030.00618.04
8.2.50.0050.00318.07
8.2.40.0040.00418.22
8.2.30.0030.00618.09
8.2.20.0040.00417.85
8.2.10.0050.00318.13
8.2.00.0040.00417.77
8.1.280.0090.00625.92
8.1.270.0030.00623.88
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00622.04
8.1.230.0110.00019.09
8.1.220.0030.00617.77
8.1.210.0080.00018.77
8.1.200.0030.00717.35
8.1.190.0040.00417.38
8.1.180.0000.00818.10
8.1.170.0040.00418.66
8.1.160.0040.00422.09
8.1.150.0040.00418.96
8.1.140.0020.00517.54
8.1.130.0070.00017.74
8.1.120.0040.00417.50
8.1.110.0040.00417.48
8.1.100.0040.00417.48
8.1.90.0050.00217.51
8.1.80.0070.00017.39
8.1.70.0000.00717.45
8.1.60.0040.00717.65
8.1.50.0060.00317.45
8.1.40.0040.00417.43
8.1.30.0080.00017.64
8.1.20.0040.00417.60
8.1.10.0040.00417.49
8.1.00.0030.00617.44
8.0.300.0050.00318.77
8.0.290.0000.00816.75
8.0.280.0000.00718.40
8.0.270.0030.00317.21
8.0.260.0030.00317.29
8.0.250.0070.00017.02
8.0.240.0030.00316.97
8.0.230.0000.00717.03
8.0.220.0070.00016.91
8.0.210.0040.00416.88
8.0.200.0030.00317.04
8.0.190.0000.00717.09
8.0.180.0000.00716.93
8.0.170.0030.00616.91
8.0.160.0000.00716.89
8.0.150.0070.00016.85
8.0.140.0000.00716.97
8.0.130.0050.00313.42
8.0.120.0050.00316.93
8.0.110.0080.00016.93
8.0.100.0000.00716.95
8.0.90.0050.00217.02
8.0.80.0100.00716.94
8.0.70.0030.00516.93
8.0.60.0000.00716.85
8.0.50.0030.00516.97
8.0.30.0160.00717.25
8.0.20.0170.00317.40
8.0.10.0070.00017.16
8.0.00.0090.01016.75
7.4.330.0030.00315.07
7.4.320.0000.00716.63
7.4.300.0030.00316.46
7.4.290.0030.00316.49
7.4.280.0030.00516.38
7.4.270.0040.00416.54
7.4.260.0000.00716.61
7.4.250.0040.00416.39
7.4.240.0020.00616.60
7.4.230.0030.00316.73
7.4.220.0070.01116.72
7.4.210.0100.00316.57
7.4.200.0000.00716.45
7.4.160.0180.00416.63
7.4.150.0150.00317.40
7.4.140.0110.00517.86
7.4.130.0130.00516.67
7.4.120.0040.01316.56
7.4.110.0060.01116.54
7.4.100.0060.01516.47
7.4.90.0070.01116.48
7.4.80.0100.01316.66
7.4.70.0040.01216.73
7.4.60.0080.00816.43
7.4.50.0070.00516.50
7.4.40.0100.00816.07
7.4.30.0100.00616.22
7.4.20.0130.00416.23
7.4.10.0050.01315.90
7.4.00.0080.01015.51
7.3.330.0030.00613.29
7.3.320.0050.00013.47
7.3.310.0000.00716.53
7.3.300.0040.00416.45
7.3.290.0120.00316.45
7.3.280.0060.01416.43
7.3.270.0100.00717.40
7.3.260.0130.01016.53
7.3.250.0090.01216.39
7.3.240.0060.01116.53
7.3.230.0090.00916.51
7.3.210.0100.01016.48
7.3.200.0120.00919.39
7.3.190.0140.00416.64
7.3.180.0060.00916.26
7.3.170.0060.00916.21
7.3.160.0070.00916.39
7.3.150.0060.01016.26
7.3.140.0110.00616.48
7.3.130.0060.01115.50
7.3.120.0140.00515.38
7.3.110.0060.01315.23
7.3.100.0080.00615.30
7.3.90.0060.00715.40
7.3.80.0080.00915.43
7.3.70.0080.00715.37
7.3.60.0070.00715.37
7.3.50.0080.00815.33
7.3.40.0040.00915.38
7.3.30.0080.00615.33
7.3.20.0060.00916.50
7.3.10.0100.00516.56
7.3.00.0070.00616.53
7.2.330.0100.01316.73
7.2.320.0100.00616.43
7.2.310.0030.01316.73
7.2.300.0070.01116.59
7.2.290.0080.00816.51
7.2.280.0120.00416.48
7.2.270.0090.00916.45
7.2.260.0070.00915.92
7.2.250.0100.00915.71
7.2.240.0060.01015.65
7.2.230.0030.01215.40
7.2.220.0060.00915.59
7.2.210.0050.01015.70
7.2.200.0030.01115.66
7.2.190.0060.00815.63
7.2.180.0070.00915.55
7.2.170.0070.00715.54
7.2.160.0090.00715.45
7.2.150.0060.01116.91
7.2.140.0060.00916.71
7.2.130.0060.00916.68
7.2.120.0050.00816.86
7.2.110.0050.00916.81
7.2.100.0060.00916.82
7.2.90.0080.00716.88
7.2.80.0070.00816.91
7.2.70.0090.00516.84
7.2.60.0060.00816.79
7.2.50.0060.00816.84
7.2.40.0050.00916.89
7.2.30.0090.00616.88
7.2.20.0050.00916.94
7.2.10.0070.00816.70
7.2.00.0060.00817.26
7.1.330.0100.00715.67
7.1.320.0070.00915.71
7.1.310.0100.00515.82
7.1.300.0080.00915.62
7.1.290.0110.00515.55
7.1.280.0060.00815.65
7.1.270.0210.00615.54
7.1.260.0030.01215.82
7.1.250.0060.00815.70
7.1.240.0090.00515.64
7.1.230.0050.00915.72
7.1.220.0050.01015.62
7.1.210.0100.00615.52
7.1.200.0070.00615.72
7.1.190.0090.00615.72
7.1.180.0070.00615.68
7.1.170.0050.00915.73
7.1.160.0090.00415.65
7.1.150.0100.00615.64
7.1.140.0080.00515.67
7.1.130.0060.00815.75
7.1.120.0070.00415.55
7.1.110.0060.00715.79
7.1.100.0070.00516.25
7.1.90.0090.00815.74
7.1.80.0080.00515.81
7.1.70.0060.00616.05
7.1.60.0070.01116.57
7.1.50.0080.00816.00
7.1.40.0050.00915.61
7.1.30.0110.00115.68
7.1.20.0090.00715.63
7.1.10.0030.01015.59
7.1.00.0060.02417.32
7.0.330.0090.00615.30
7.0.320.0070.00715.35
7.0.310.0070.00615.22
7.0.300.0050.00815.20
7.0.290.0060.00815.30
7.0.280.0050.01115.26
7.0.270.0080.00615.25
7.0.260.0040.00815.12
7.0.250.0080.01115.31
7.0.240.0080.00715.36
7.0.230.0080.00715.29
7.0.220.0080.00415.40
7.0.210.0050.00815.34
7.0.200.0040.00715.67
7.0.190.0050.00715.27
7.0.180.0070.00715.32
7.0.170.0030.01015.29
7.0.160.0040.00815.41
7.0.150.0050.00815.38
7.0.140.0040.02617.04
7.0.130.0070.00615.31
7.0.120.0060.00815.13
7.0.110.0060.00915.21
7.0.100.0060.00715.23
7.0.90.0080.00815.15
7.0.80.0070.00615.30
7.0.70.0070.00715.36
7.0.60.0110.02216.53
7.0.50.0030.02615.88
7.0.40.0090.01515.53
7.0.30.0090.01515.54
7.0.20.0090.01815.51
7.0.10.0080.02515.62
7.0.00.0070.02515.47
5.6.400.0050.00914.95
5.6.390.0060.00914.97
5.6.380.0060.00914.91
5.6.370.0060.01114.77
5.6.360.0070.00915.04
5.6.350.0080.00714.93
5.6.340.0060.01014.89
5.6.330.0070.00914.78
5.6.320.0050.01014.99
5.6.310.0070.00814.82
5.6.300.0030.01114.87
5.6.290.0070.00714.78
5.6.280.0050.02616.63
5.6.270.0060.00714.87
5.6.260.0080.00714.91
5.6.250.0070.00814.80
5.6.240.0050.01114.75
5.6.230.0040.00814.92
5.6.220.0050.01214.76
5.6.210.0080.02416.29
5.6.200.0070.02715.76
5.6.190.0070.02616.19
5.6.180.0110.01516.25
5.6.170.0130.02216.30
5.6.160.0070.01616.42
5.6.150.0060.02215.64
5.6.140.0050.02415.74
5.6.130.0060.01615.77
5.6.120.0100.02316.38
5.6.110.0050.02816.36
5.6.100.0020.03016.35
5.6.90.0060.02716.41
5.6.80.0020.01816.10
5.6.70.1190.01616.19
5.6.60.0050.00814.83
5.6.50.0060.00714.76
5.6.40.0070.00714.78
5.6.30.0050.01414.82
5.6.20.0120.00214.69
5.6.10.0100.00314.84
5.6.00.0040.00914.68
5.5.380.0100.00614.73
5.5.370.0060.00714.86
5.5.360.0040.01114.91
5.5.350.0090.01916.26
5.5.340.0080.01515.51
5.5.330.0060.01816.27
5.5.320.0030.01916.24
5.5.310.0100.02816.10
5.5.300.0060.01515.61
5.5.290.0090.02615.64
5.5.280.0040.01916.33
5.5.270.0060.02716.24
5.5.260.0100.02616.17
5.5.250.0080.02716.16
5.5.240.0100.01116.02
5.5.230.0030.00814.70
5.5.220.0060.00714.77
5.5.210.0040.00714.84
5.5.200.0050.00914.89
5.5.190.0110.00414.65
5.5.180.0020.01314.76
5.5.170.0090.00514.83
5.5.160.0030.01015.00
5.5.150.0060.00914.79
5.5.140.0080.00614.90
5.5.130.0050.00714.77
5.5.120.0060.00814.88
5.5.110.0050.01014.66
5.5.100.0070.00914.77
5.5.90.0060.01114.69
5.5.80.0110.00514.71
5.5.70.0070.00914.69
5.5.60.0070.01114.71
5.5.50.0080.00514.77
5.5.40.0050.01114.86
5.5.30.0090.00814.68
5.5.20.0110.00714.88
5.5.10.0060.00714.48
5.5.00.0060.00714.63
5.4.450.0210.01114.07
5.4.440.0110.01514.08
5.4.430.0150.01314.08
5.4.420.0090.01614.00
5.4.410.0080.01614.03
5.4.400.0110.01713.98
5.4.390.0100.01113.98
5.4.380.0180.01613.86
5.4.370.0160.01513.90
5.4.360.0120.01813.89
5.4.350.0120.01713.85
5.4.340.0140.01613.86
5.4.330.0040.00812.23
5.4.320.0060.01412.37
5.4.310.0060.01512.31
5.4.300.0040.01512.31
5.4.290.0050.01512.28
5.4.280.0070.01312.34
5.4.270.0050.01412.29
5.4.260.0050.01612.28
5.4.250.0070.01612.25
5.4.240.0030.01812.31
5.4.230.0040.01612.28
5.4.220.0050.01512.33
5.4.210.0080.01612.39
5.4.200.0060.01612.32
5.4.190.0030.01912.29
5.4.180.0060.01512.32
5.4.170.0060.01212.33
5.4.160.0020.01712.29
5.4.150.0050.01512.29
5.4.140.0030.01512.24
5.4.130.0050.01512.20
5.4.120.0060.01412.23
5.4.110.0040.01612.23
5.4.100.0070.01112.19
5.4.90.0060.01412.18
5.4.80.0080.01412.19
5.4.70.0060.01212.22
5.4.60.0060.01612.24
5.4.50.0060.01312.23
5.4.40.0030.01412.22
5.4.30.0040.01412.23
5.4.20.0040.01512.21
5.4.10.0060.01412.23
5.4.00.0050.01512.07
5.3.290.0070.02413.13
5.3.280.0080.02112.94
5.3.270.0050.02512.94
5.3.260.0040.02713.00
5.3.250.0060.02412.93
5.3.240.0040.02512.90
5.3.230.0070.02312.88
5.3.220.0060.02312.92
5.3.210.0020.02812.83
5.3.200.0080.02012.91
5.3.190.0060.02312.87
5.3.180.0050.02313.05
5.3.170.0070.02112.92
5.3.160.0070.02113.01
5.3.150.0080.02113.00
5.3.140.0040.02412.88
5.3.130.0070.02312.88
5.3.120.0050.02512.88
5.3.110.0060.02712.91
5.3.100.0090.02412.71
5.3.90.0040.02412.62
5.3.80.0070.02212.54
5.3.70.0060.02212.61
5.3.60.0040.02412.60
5.3.50.0060.02212.56
5.3.40.0060.02312.62
5.3.30.0060.02212.55
5.3.20.0080.01912.43
5.3.10.0060.02312.35
5.3.00.0100.02212.28
5.2.170.0080.01710.72
5.2.160.0050.01810.73
5.2.150.0080.02010.73
5.2.140.0070.02310.69
5.2.130.0070.01910.63
5.2.120.0070.02310.59
5.2.110.0080.02510.67
5.2.100.0040.02910.67
5.2.90.0110.02110.60
5.2.80.0070.01810.56
5.2.70.0060.02410.61
5.2.60.0070.02010.57
5.2.50.0070.01810.50
5.2.40.0070.01810.58
5.2.30.0090.01710.46
5.2.20.0070.02210.49
5.2.10.0060.01810.34
5.2.00.0050.01910.24
5.1.60.0050.0169.67
5.1.50.0060.0159.70
5.1.40.0050.0169.64
5.1.30.0040.0189.81
5.1.20.0060.0169.85
5.1.10.0040.0219.78
5.1.00.0060.0219.54
5.0.50.0090.0138.41
5.0.40.0030.0198.34
5.0.30.0060.0188.24
5.0.20.0070.0138.22
5.0.10.0050.0158.21
5.0.00.0040.0208.21
4.4.90.0040.0097.46
4.4.80.0030.0097.45
4.4.70.0030.0117.45
4.4.60.0020.0127.45
4.4.50.0050.0087.46
4.4.40.0040.0147.42
4.4.30.0040.0097.45
4.4.20.0020.0117.49
4.4.10.0030.0107.49
4.4.00.0010.0167.45
4.3.110.0030.0117.41
4.3.100.0040.0107.40
4.3.90.0050.0077.39
4.3.80.0030.0157.36
4.3.70.0030.0097.38
4.3.60.0030.0127.38
4.3.50.0020.0147.38
4.3.40.0050.0187.34
4.3.30.0040.0126.74
4.3.20.0020.0146.73
4.3.10.0020.0136.71
4.3.00.0000.01314.19

preferences:
45.93 ms | 401 KiB | 5 Q