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], $var3), 1); echo "trying the binary\n"; var_dump(poor_mans_strcmp($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)
8.3.60.0120.00318.68
8.3.50.0170.00323.00
8.3.40.0150.00019.02
8.3.30.0090.00619.10
8.3.20.0120.00620.39
8.3.10.0030.00623.64
8.3.00.0060.00319.38
8.2.180.0240.00316.63
8.2.170.0100.00622.96
8.2.160.0110.01120.44
8.2.150.0070.01124.18
8.2.140.0080.00024.66
8.2.130.0060.01226.16
8.2.120.0080.00320.98
8.2.110.0090.00020.41
8.2.100.0080.00417.87
8.2.90.0030.00617.75
8.2.80.0000.00818.91
8.2.70.0000.00817.63
8.2.60.0040.00717.50
8.2.50.0090.00018.07
8.2.40.0050.00318.16
8.2.30.0000.00818.04
8.2.20.0000.00817.80
8.2.10.0040.00418.04
8.2.00.0050.00317.70
8.1.280.0150.00025.92
8.1.270.0160.00323.83
8.1.260.0090.00026.35
8.1.250.0080.00028.09
8.1.240.0080.00023.97
8.1.230.0080.00417.71
8.1.220.0040.00417.78
8.1.210.0050.00318.77
8.1.200.0000.00817.35
8.1.190.0000.00817.23
8.1.180.0050.00318.10
8.1.170.0000.00818.48
8.1.160.0000.00722.01
8.1.150.0000.00718.80
8.1.140.0000.00817.55
8.1.130.0050.00217.82
8.1.120.0080.00017.55
8.1.110.0040.00417.45
8.1.100.0040.00417.46
8.1.90.0040.00417.52
8.1.80.0070.00017.48
8.1.70.0040.00417.46
8.1.60.0070.00717.67
8.1.50.0040.00417.46
8.1.40.0030.00517.56
8.1.30.0040.00417.58
8.1.20.0040.00417.62
8.1.10.0000.00817.58
8.1.00.0030.00617.43
8.0.300.0080.00018.77
8.0.290.0000.00816.88
8.0.280.0000.00718.55
8.0.270.0030.00517.30
8.0.260.0080.00017.31
8.0.250.0030.00316.95
8.0.240.0000.00817.07
8.0.230.0050.00316.93
8.0.220.0030.00516.91
8.0.210.0000.00717.06
8.0.200.0040.00416.97
8.0.190.0040.00417.09
8.0.180.0000.00817.02
8.0.170.0040.00417.02
8.0.160.0000.00717.07
8.0.150.0000.00717.03
8.0.140.0070.00016.98
8.0.130.0080.00213.41
8.0.120.0040.00416.89
8.0.110.0030.00517.02
8.0.100.0000.00716.86
8.0.90.0040.00416.82
8.0.80.0090.00917.05
8.0.70.0040.00416.89
8.0.60.0040.00417.03
8.0.50.0060.00317.06
8.0.30.0120.00817.03
8.0.20.0100.00917.40
8.0.10.0040.00417.16
8.0.00.0130.00516.82
7.4.330.0030.00315.09
7.4.320.0000.00716.64
7.4.300.0030.00516.68
7.4.290.0030.00316.49
7.4.280.0040.00816.48
7.4.270.0070.00016.59
7.4.260.0030.00516.67
7.4.250.0000.00816.59
7.4.240.0000.00716.59
7.4.230.0000.00716.64
7.4.220.0100.00816.46
7.4.210.0070.00716.42
7.4.200.0000.00716.57
7.4.160.0120.00316.56
7.4.150.0070.01117.40
7.4.140.0080.00817.86
7.4.130.0130.00416.61
7.4.120.0070.01116.54
7.4.110.0140.00516.48
7.4.100.0060.01216.47
7.4.90.0160.00316.57
7.4.80.0090.01416.53
7.4.70.0080.00816.37
7.4.60.0040.01316.38
7.4.50.0070.00616.53
7.4.40.0090.00715.93
7.4.30.0130.00316.20
7.4.20.0120.00416.39
7.4.10.0080.00816.05
7.4.00.0060.01015.92
7.3.330.0040.00413.46
7.3.320.0000.00613.46
7.3.310.0040.00416.31
7.3.300.0030.00316.47
7.3.290.0070.00716.46
7.3.280.0110.00716.44
7.3.270.0090.00917.40
7.3.260.0150.00916.49
7.3.250.0100.00716.49
7.3.240.0140.00316.49
7.3.230.0100.00616.50
7.3.210.0120.00716.61
7.3.200.0080.01219.39
7.3.190.0140.00416.41
7.3.180.0080.00816.25
7.3.170.0030.01416.25
7.3.160.0080.01016.31
7.3.150.0030.01216.45
7.3.140.0060.01016.51
7.3.130.0100.00716.39
7.3.120.0070.01016.59
7.3.110.0130.00316.30
7.3.100.0080.00816.38
7.3.90.0060.00916.18
7.3.80.0160.00716.26
7.3.70.0030.01316.30
7.3.60.0090.00616.24
7.3.50.0060.01016.18
7.3.40.0080.00816.38
7.3.30.0120.00316.25
7.3.20.0130.00316.27
7.3.10.0070.01016.23
7.3.00.0110.00616.40
7.2.330.0030.01516.60
7.2.320.0120.00616.79
7.2.310.0150.00416.58
7.2.300.0060.01116.57
7.2.290.0030.01316.73
7.2.280.0090.00616.58
7.2.270.0130.00316.40
7.2.260.0050.01116.34
7.2.250.0030.01316.33
7.2.240.0090.00916.32
7.2.230.0060.01216.46
7.2.220.0030.01316.31
7.2.210.0030.01416.55
7.2.200.0040.01416.55
7.2.190.0030.01316.49
7.2.180.0100.00716.24
7.2.170.0100.00716.32
7.2.160.0080.00816.34
7.2.150.0200.01016.50
7.2.140.0070.01016.41
7.2.130.0090.00916.37
7.2.120.0040.01016.57
7.2.110.0070.00716.60
7.2.100.0140.00216.52
7.2.90.0050.01216.78
7.2.80.0080.00816.58
7.2.70.0090.00716.71
7.2.60.0080.00616.75
7.2.50.0060.00916.82
7.2.40.0060.00816.81
7.2.30.0070.01016.84
7.2.20.0120.00516.79
7.2.10.0100.00716.74
7.2.00.0040.01117.74
7.1.330.0000.01615.54
7.1.320.0080.01415.28
7.1.310.0080.01215.52
7.1.300.0040.01115.25
7.1.290.0100.00715.20
7.1.280.0050.01015.43
7.1.270.0080.00815.43
7.1.260.0050.01515.15
7.1.250.0060.00915.24
7.1.240.0040.01115.48
7.1.230.0110.00515.41
7.1.220.0090.00615.40
7.1.210.0080.00615.59
7.1.200.0100.00715.64
7.1.190.0060.00915.50
7.1.180.0060.00815.38
7.1.170.0040.01115.69
7.1.160.0040.00915.58
7.1.150.0100.00515.55
7.1.140.0040.01115.54
7.1.130.0110.00515.67
7.1.120.0070.00815.60
7.1.110.0080.00715.59
7.1.100.0040.00916.51
7.1.90.0060.01015.61
7.1.80.0050.01115.54
7.1.70.0030.00916.19
7.1.60.0080.01016.18
7.1.50.0080.01116.09
7.1.40.0060.00815.50
7.1.30.0050.01015.66
7.1.20.0030.00915.62
7.1.10.0100.00515.60
7.1.00.0040.03217.75
7.0.330.0040.01314.86
7.0.320.0110.00315.15
7.0.310.0050.00815.25
7.0.300.0080.00615.33
7.0.290.0080.00515.02
7.0.280.0050.00715.09
7.0.270.0050.00915.16
7.0.260.0070.00815.11
7.0.250.0070.00515.34
7.0.240.0080.00815.34
7.0.230.0080.00815.18
7.0.220.0070.00715.15
7.0.210.0090.00915.25
7.0.200.0070.00615.80
7.0.190.0090.00315.17
7.0.180.0070.00815.22
7.0.170.0060.00715.33
7.0.160.0050.01115.30
7.0.150.0070.00815.31
7.0.140.0070.02917.53
7.0.130.0060.00815.20
7.0.120.0100.00415.37
7.0.110.0020.01315.21
7.0.100.0080.00615.19
7.0.90.0030.00815.35
7.0.80.0050.00715.12
7.0.70.0050.00615.19
7.0.60.0100.02816.70
7.0.50.0040.03316.06
7.0.40.0080.03116.20
7.0.30.0150.03216.20
7.0.20.0140.03016.17
7.0.10.0070.02816.15
7.0.00.0040.02616.21
5.6.400.0100.00715.58
5.6.390.0100.00815.45
5.6.380.0100.00714.85
5.6.370.0090.00815.14
5.6.360.0090.00715.15
5.6.350.0090.00614.88
5.6.340.0070.00915.27
5.6.330.0060.01115.06
5.6.320.0040.00815.06
5.6.310.0090.00715.09
5.6.300.0080.00615.17
5.6.290.0070.01015.25
5.6.280.0060.03617.13
5.6.270.0090.00915.21
5.6.260.0080.00815.21
5.6.250.0120.00415.08
5.6.240.0080.00815.22
5.6.230.0080.00714.95
5.6.220.0100.00615.08
5.6.210.0080.03216.92
5.6.200.0080.03416.04
5.6.190.0100.03016.88
5.6.180.0170.03216.92
5.6.170.0110.01816.85
5.6.160.0070.03417.03
5.6.150.0050.02416.11
5.6.140.0080.02216.13
5.6.130.0110.03116.20
5.6.120.0020.02317.22
5.6.110.0040.03117.14
5.6.100.0080.03117.08
5.6.90.0090.03217.02
5.6.80.0090.01616.90
5.6.70.1350.01816.89
5.6.60.0110.00515.01
5.6.50.0100.00515.08
5.6.40.0020.01414.96
5.6.30.0030.01214.99
5.6.20.0070.01014.88
5.6.10.0030.01115.13
5.6.00.0100.00615.05
5.5.380.0050.00813.47
5.5.370.0100.00613.49
5.5.360.0060.00813.40
5.5.350.0110.02915.81
5.5.340.0090.02714.86
5.5.330.0030.02315.68
5.5.320.0060.03115.68
5.5.310.0170.02815.84
5.5.300.0080.03215.06
5.5.290.0130.02414.97
5.5.280.0030.02215.84
5.5.270.0090.03015.97
5.5.260.0030.03515.96
5.5.250.0070.02915.94
5.5.240.0140.01915.74
5.5.230.0110.00313.44
5.5.220.0080.00513.50
5.5.210.0060.00813.43
5.5.200.0090.00713.36
5.5.190.0090.00513.46
5.5.180.0060.00813.33
5.5.170.0060.01015.00
5.5.160.0050.00913.41
5.5.150.0050.00713.54
5.5.140.0090.00513.54
5.5.130.0060.00713.48
5.5.120.0060.00713.20
5.5.110.0050.00913.54
5.5.100.0060.00913.68
5.5.90.0140.00313.47
5.5.80.0100.00513.41
5.5.70.0100.00513.25
5.5.60.0070.01013.27
5.5.50.0100.00513.52
5.5.40.0120.00413.41
5.5.30.0050.01013.31
5.5.20.0080.00913.33
5.5.10.0100.00613.50
5.5.00.0090.00713.29
5.4.450.0080.02014.44
5.4.440.0150.02114.32
5.4.430.0040.02214.34
5.4.420.0150.01714.50
5.4.410.0350.02114.35
5.4.400.0140.01314.18
5.4.390.0120.01714.24
5.4.380.0130.03114.21
5.4.370.0110.02314.23
5.4.360.0150.02014.16
5.4.350.0120.02213.99
5.4.340.0100.02514.17
5.4.330.0120.00211.86
5.4.320.0070.02112.06
5.4.310.0070.02112.12
5.4.300.0090.01912.16
5.4.290.0070.02112.13
5.4.280.0070.02111.99
5.4.270.0040.02012.06
5.4.260.0080.01712.11
5.4.250.0080.01711.99
5.4.240.0080.01912.05
5.4.230.0050.02312.06
5.4.220.0070.01812.02
5.4.210.0070.01912.01
5.4.200.0070.02211.99
5.4.190.0080.01811.98
5.4.180.0080.01612.04
5.4.170.0060.02112.00
5.4.160.0080.01511.99
5.4.150.0080.01612.06
5.4.140.0080.01611.84
5.4.130.0070.01511.95
5.4.120.0060.01611.97
5.4.110.0040.01711.93
5.4.100.0070.01511.94
5.4.90.0070.01611.80
5.4.80.0050.01711.77
5.4.70.0100.01311.92
5.4.60.0060.02111.92
5.4.50.0060.02011.84
5.4.40.0040.02211.85
5.4.30.0050.02011.96
5.4.20.0090.01812.02
5.4.10.0060.02211.99
5.4.00.0090.01811.72
5.3.290.0060.01812.31
5.3.280.0040.02212.10
5.3.270.0100.01812.15
5.3.260.0090.01912.16
5.3.250.0040.02412.24
5.3.240.0060.02111.99
5.3.230.0080.01512.02
5.3.220.0070.01712.10
5.3.210.0060.01712.10
5.3.200.0080.01612.11
5.3.190.0050.01812.16
5.3.180.0050.01812.27
5.3.170.0040.01712.13
5.3.160.0060.01712.21
5.3.150.0080.01612.24
5.3.140.0050.01712.16
5.3.130.0060.01712.14
5.3.120.0090.01612.15
5.3.110.0070.01712.13
5.3.100.0090.01511.99
5.3.90.0050.01712.02
5.3.80.0070.01611.89
5.3.70.0080.01511.85
5.3.60.0040.01811.87
5.3.50.0060.01511.91
5.3.40.0100.01411.90
5.3.30.0060.01611.93
5.3.20.0060.01611.71
5.3.10.0070.01611.68
5.3.00.0100.01311.65
5.2.170.0100.00710.58
5.2.160.0080.01110.63
5.2.150.0040.01410.54
5.2.140.0060.01410.56
5.2.130.0090.01010.52
5.2.120.0040.01510.55
5.2.110.0050.01310.50
5.2.100.0080.01210.60
5.2.90.0050.01410.54
5.2.80.0050.01410.46
5.2.70.0070.01410.46
5.2.60.0070.01410.46
5.2.50.0080.01210.43
5.2.40.0060.01210.45
5.2.30.0080.01110.43
5.2.20.0060.01210.43
5.2.10.0070.01210.33
5.2.00.0040.01510.25
5.1.60.0040.0119.81
5.1.50.0080.0109.80
5.1.40.0060.0119.84
5.1.30.0040.01410.03
5.1.20.0060.01210.01
5.1.10.0060.0139.85
5.1.00.0030.0149.82
5.0.50.0020.0139.06
5.0.40.0050.0129.01
5.0.30.0030.0168.93
5.0.20.0050.0128.92
5.0.10.0070.0098.91
5.0.00.0020.0178.91
4.4.90.0020.0108.41
4.4.80.0040.0088.40
4.4.70.0050.0078.40
4.4.60.0050.0078.40
4.4.50.0040.0088.41
4.4.40.0040.0128.39
4.4.30.0020.0098.40
4.4.20.0020.0118.43
4.4.10.0030.0098.43
4.4.00.0010.0148.40
4.3.110.0030.0108.37
4.3.100.0020.0098.37
4.3.90.0020.0078.36
4.3.80.0030.0118.34
4.3.70.0040.0088.36
4.3.60.0020.0108.36
4.3.50.0040.0088.36
4.3.40.0040.0118.33
4.3.30.0010.0107.93
4.3.20.0060.0067.92
4.3.10.0030.0087.90
4.3.00.0070.00312.89

preferences:
58.19 ms | 401 KiB | 5 Q