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 ($var3 == $arr1[0]) {echo "$var3 == $arr1[0]"; } var_dump(poor_mans_strcmp('a', 'z')); var_dump(poor_mans_strcmp('q111f', 'fffff')); var_dump(poor_mans_strcmp($arr1, $var2)); var_dump(poor_mans_strcmp($arr1[0], $var2)); var_dump(poor_mans_strcmp($var2, $var2)); var_dump(poor_mans_strcmp($arr1[0], $var3)); function poor_mans_strcmp($str1, $str2) { $result = 0; $str3 = 'a' . $str1; $str4 = 'a' . $str2; var_dump($str3, $str4); if ($str3 < $str4) { $result = -1; } if ($str3 > $str4) { $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)
8.3.70.0110.01116.63
8.3.60.0110.00418.43
8.3.50.0230.00522.83
8.3.40.0150.00618.74
8.3.30.0040.01119.07
8.3.20.0070.00020.12
8.3.10.0080.00023.58
8.3.00.0040.00419.38
8.2.190.0070.00718.38
8.2.180.0080.00816.63
8.2.170.0140.00022.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00420.95
8.2.110.0060.00322.25
8.2.100.0040.00717.60
8.2.90.0030.00519.20
8.2.80.0080.00017.97
8.2.70.0000.00817.75
8.2.60.0000.00818.03
8.2.50.0040.00418.07
8.2.40.0080.00018.03
8.2.30.0020.00518.01
8.2.20.0070.00017.76
8.2.10.0070.00018.12
8.2.00.0000.00717.76
8.1.280.0160.00325.92
8.1.270.0080.00023.99
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0090.00021.24
8.1.230.0000.01217.64
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0060.00317.25
8.1.180.0090.00018.10
8.1.170.0030.00618.51
8.1.160.0000.00722.07
8.1.150.0040.00418.78
8.1.140.0040.00417.48
8.1.130.0070.00017.84
8.1.120.0040.00417.45
8.1.110.0040.00417.53
8.1.100.0070.00017.46
8.1.90.0000.00717.45
8.1.80.0070.00017.50
8.1.70.0070.00017.36
8.1.60.0080.00017.65
8.1.50.0000.00817.49
8.1.40.0060.00317.50
8.1.30.0040.00417.70
8.1.20.0040.00417.62
8.1.10.0070.00017.57
8.1.00.0060.00317.57
8.0.300.0030.00518.77
8.0.290.0040.00416.75
8.0.280.0000.00718.48
8.0.270.0030.00317.32
8.0.260.0030.00317.27
8.0.250.0070.00017.10
8.0.240.0040.00417.00
8.0.230.0030.00316.96
8.0.220.0030.00316.91
8.0.210.0090.00017.01
8.0.200.0030.00317.05
8.0.190.0000.00916.91
8.0.180.0040.00416.98
8.0.170.0060.00316.95
8.0.160.0040.00416.92
8.0.150.0030.00516.86
8.0.140.0000.00716.96
8.0.130.0000.00513.36
8.0.120.0000.00816.82
8.0.110.0030.00516.91
8.0.100.0050.00316.95
8.0.90.0000.00717.05
8.0.80.0030.01316.91
8.0.70.0000.00716.85
8.0.60.0000.00816.91
8.0.50.0070.00016.98
8.0.30.0050.01417.18
8.0.20.0140.01417.40
8.0.10.0030.00516.95
8.0.00.0150.00316.78
7.4.330.0030.00315.08
7.4.320.0030.00316.53
7.4.300.0030.00316.59
7.4.290.0070.00016.57
7.4.280.0090.00016.49
7.4.270.0000.00716.38
7.4.260.0050.00316.63
7.4.250.0000.00716.55
7.4.240.0020.00616.63
7.4.230.0000.00716.63
7.4.220.0100.01016.48
7.4.210.0120.00816.57
7.4.200.0000.00816.70
7.4.160.0030.01316.53
7.4.150.0030.01517.40
7.4.140.0100.00717.86
7.4.130.0140.00516.43
7.4.120.0110.00516.46
7.4.110.0140.00416.64
7.4.100.0070.01116.75
7.4.90.0060.01216.51
7.4.80.0140.00319.39
7.4.70.0150.00416.71
7.4.60.0120.00916.32
7.4.50.0050.00016.27
7.4.40.0110.00616.78
7.4.30.0060.01016.51
7.4.00.0080.00914.94
7.3.330.0000.00513.38
7.3.320.0000.00613.45
7.3.310.0030.00316.34
7.3.300.0070.00016.41
7.3.290.0070.00716.39
7.3.280.0050.01416.47
7.3.270.0100.01017.40
7.3.260.0170.00716.57
7.3.250.0090.00916.64
7.3.240.0140.00516.46
7.3.230.0070.01016.60
7.3.210.0150.01016.47
7.3.200.0060.01219.39
7.3.190.0130.00916.46
7.3.180.0070.01016.47
7.3.170.0030.02016.34
7.3.160.0090.01216.47
7.3.120.0050.01115.02
7.3.110.0050.01014.99
7.3.100.0070.00914.79
7.3.90.0070.00614.94
7.3.80.0040.00814.93
7.3.70.0070.00514.82
7.3.60.0060.00714.86
7.3.50.0050.00814.80
7.3.40.0050.00914.86
7.3.30.0070.00614.79
7.3.20.0050.01016.79
7.3.10.0070.00716.63
7.3.00.0060.00616.62
7.2.330.0130.00416.67
7.2.320.0040.01216.64
7.2.310.0040.01316.54
7.2.300.0060.01016.46
7.2.290.0100.00716.88
7.2.250.0050.01215.03
7.2.240.0070.01115.09
7.2.230.0060.00815.08
7.2.220.0050.01014.99
7.2.210.0050.00915.15
7.2.200.0080.00415.16
7.2.190.0070.00514.97
7.2.180.0080.00915.06
7.2.170.0070.00815.08
7.2.160.0070.00614.77
7.2.150.0080.00716.91
7.2.140.0080.00816.85
7.2.130.0120.00216.92
7.2.120.0020.01116.94
7.2.110.0030.01216.95
7.2.100.0070.00816.90
7.2.90.0040.01117.02
7.2.80.0040.00817.00
7.2.70.0040.01117.10
7.2.60.0080.00917.04
7.2.50.0050.01116.99
7.2.40.0030.01216.85
7.2.30.0050.00917.08
7.2.20.0050.00817.03
7.2.10.0030.01316.82
7.2.00.0100.00517.83
7.1.330.0050.00815.80
7.1.320.0070.00615.77
7.1.310.0060.00715.78
7.1.300.0050.00815.66
7.1.290.0070.00615.87
7.1.280.0040.01015.92
7.1.270.0040.00915.70
7.1.260.0080.00515.85
7.1.250.0060.00815.75
7.1.240.0080.00415.66
7.1.230.0060.00615.53
7.1.220.0090.00615.78
7.1.210.0040.00815.92
7.1.200.0100.00715.93
7.1.190.0120.00315.79
7.1.180.0060.01215.90
7.1.170.0000.01916.06
7.1.160.0060.01015.86
7.1.150.0040.00715.61
7.1.140.0060.00615.70
7.1.130.0060.00915.71
7.1.120.0000.01215.81
7.1.110.0090.00615.73
7.1.100.0080.01016.93
7.1.90.0110.00315.81
7.1.80.0040.01116.06
7.1.70.0060.00616.48
7.1.60.0110.00617.62
7.1.50.0080.00916.47
7.1.40.0040.00815.57
7.1.30.0070.00315.84
7.1.20.0060.00915.98
7.1.10.0060.00915.82
7.1.00.0020.04318.96
7.0.330.0000.01115.52
7.0.320.0060.01115.45
7.0.310.0040.00715.46
7.0.300.0000.00915.45
7.0.290.0030.01015.63
7.0.280.0030.00615.10
7.0.270.0030.00915.41
7.0.260.0090.00615.20
7.0.250.0070.00715.36
7.0.240.0030.01015.16
7.0.230.0040.01215.50
7.0.220.0030.00715.51
7.0.210.0060.00615.45
7.0.200.0030.00916.15
7.0.190.0030.01015.49
7.0.180.0030.01015.34
7.0.170.0030.00715.18
7.0.160.0100.00615.40
7.0.150.0080.00815.48
7.0.140.0070.03818.80
7.0.130.0040.00815.51
7.0.120.0060.00615.63
7.0.110.0040.00415.26
7.0.100.0060.01215.58
7.0.90.0070.01015.51
7.0.80.0070.00715.56
7.0.70.0080.00315.32
7.0.60.0040.04217.74
7.0.50.0060.02716.60
7.0.40.0020.04216.90
7.0.30.0150.04216.74
7.0.20.0160.03916.93
7.0.10.0050.02416.86
7.0.00.0060.04316.78
5.6.400.0070.01414.38
5.6.390.0030.01014.49
5.6.380.0100.00314.80
5.6.370.0000.01114.61
5.6.360.0040.01114.38
5.6.350.0030.00614.47
5.6.340.0060.00914.86
5.6.330.0090.00614.16
5.6.320.0030.00914.44
5.6.310.0040.01114.63
5.6.300.0060.00914.18
5.6.290.0060.00614.84
5.6.280.0070.03717.79
5.6.270.0040.00414.57
5.6.260.0100.00314.55
5.6.250.0030.01214.85
5.6.240.0060.00914.49
5.6.230.0000.01114.68
5.6.220.0060.00314.28
5.6.210.0030.02817.45
5.6.200.0070.02416.29
5.6.190.0030.03217.41
5.6.180.0200.04017.56
5.6.170.0120.02317.56
5.6.160.0040.04917.44
5.6.150.0070.04716.24
5.6.140.0100.02816.45
5.6.130.0100.03716.23
5.6.120.0090.04017.57
5.6.110.0080.04317.80
5.6.100.0080.04017.84
5.6.90.0100.03317.65
5.6.80.0040.03117.57
5.6.70.0050.00614.45
5.6.60.0060.00314.13
5.6.50.0070.00414.40
5.6.40.0110.00314.15
5.6.30.0050.00514.12
5.6.20.0040.00814.52
5.6.10.0030.00714.43
5.6.00.0070.00314.16
5.5.380.0070.00714.49
5.5.370.0090.00314.33
5.5.360.0100.00714.33
5.5.350.0170.03817.42
5.5.340.0030.02316.37
5.5.330.0020.04917.23
5.5.320.0060.04817.51
5.5.310.0140.02517.37
5.5.300.0070.04515.99
5.5.290.0050.04316.14
5.5.280.0100.02617.69
5.5.270.0100.02517.73
5.5.260.0050.04817.65
5.5.250.0090.02217.34
5.5.240.0120.04317.29
5.5.230.0090.00314.32
5.5.220.0030.00614.51
5.5.210.0040.00814.44
5.5.200.0030.01014.50
5.5.190.0110.00314.39
5.5.180.0000.00914.30
5.5.170.0040.00814.52
5.5.160.0060.00313.98
5.5.150.0070.00714.53
5.5.140.0120.00314.36
5.5.130.0060.01014.53
5.5.120.0030.00913.96
5.5.110.0000.01314.51
5.5.100.0070.00414.46
5.5.90.0000.01514.17
5.5.80.0070.01314.32
5.5.70.0060.00314.46
5.5.60.0030.01014.29
5.5.50.0090.00014.17
5.5.40.0030.00714.00
5.5.30.0030.01014.16
5.5.20.0090.00614.36
5.5.10.0080.00814.18
5.5.00.0060.00913.89
5.4.450.0080.03715.64
5.4.440.0210.02315.76
5.4.430.0150.02015.78
5.4.420.0110.02015.83
5.4.410.0070.01715.73
5.4.400.0100.01815.68
5.4.390.0120.05015.49
5.4.380.0220.02515.42
5.4.370.0310.03415.32
5.4.360.0190.03315.32
5.4.350.0250.03815.47
5.4.340.0300.04115.34
5.4.330.0000.00712.11
5.4.320.0020.02512.31
5.4.310.0060.02112.31
5.4.300.0020.02312.31
5.4.290.0060.02312.31
5.4.280.0060.01912.26
5.4.270.0030.02212.25
5.4.260.0040.02612.25
5.4.250.0020.02312.26
5.4.240.0050.02212.26
5.4.230.0080.02112.25
5.4.220.0040.02412.25
5.4.210.0070.02112.25
5.4.200.0060.02112.25
5.4.190.0040.02312.25
5.4.180.0050.02112.25
5.4.170.0030.02112.26
5.4.160.0050.02112.25
5.4.150.0050.02112.25
5.4.140.0080.02012.09
5.4.130.0040.02212.09
5.4.120.0060.02812.07
5.4.110.0050.02312.06
5.4.100.0050.02412.06
5.4.90.0070.02212.06
5.4.80.0070.02112.06
5.4.70.0060.02012.06
5.4.60.0030.02112.06
5.4.50.0050.02212.06
5.4.40.0050.02312.05
5.4.30.0070.02012.05
5.4.20.0070.01812.05
5.4.10.0070.02012.05
5.4.00.0020.02411.80
5.3.290.0070.04012.80
5.3.280.0040.03912.71
5.3.270.0090.04612.72
5.3.260.0110.03512.71
5.3.250.0080.05312.72
5.3.240.0080.04212.72
5.3.230.0040.04212.71
5.3.220.0030.04212.68
5.3.210.0100.04512.68
5.3.200.0060.04912.68
5.3.190.0110.04712.68
5.3.180.0080.05012.67
5.3.170.0090.04712.67
5.3.160.0120.03812.67
5.3.150.0070.03712.68
5.3.140.0080.03412.66
5.3.130.0050.04712.65
5.3.120.0060.04012.66
5.3.110.0070.04112.66
5.3.100.0070.03712.13
5.3.90.0090.03512.11
5.3.80.0070.03712.11
5.3.70.0040.03912.10
5.3.60.0070.03812.09
5.3.50.0070.03712.04
5.3.40.0080.04112.04
5.3.30.0070.03511.99
5.3.20.0050.05011.79
5.3.10.0040.03911.74
5.3.00.0090.03711.73
5.2.170.0100.0369.23
5.2.160.0030.0319.23
5.2.150.0040.0429.23
5.2.140.0050.0329.23
5.2.130.0050.0299.19
5.2.120.0090.0259.19
5.2.110.0030.0319.20
5.2.100.0040.0309.19
5.2.90.0020.0339.18
5.2.80.0060.0389.18
5.2.70.0060.0339.18
5.2.60.0030.0339.14
5.2.50.0080.0279.11
5.2.40.0150.0309.09
5.2.30.0130.0279.05
5.2.20.0050.0289.05
5.2.10.0050.0288.95
5.2.00.0080.0268.82
5.1.60.0050.0298.10
5.1.50.0040.0248.09
5.1.40.0040.0238.08
5.1.30.0040.0268.43
5.1.20.0060.0248.45
5.1.10.0060.0288.18
5.1.00.0030.0318.17
5.0.50.0040.0236.66
5.0.40.0010.0226.52
5.0.30.0030.0316.33
5.0.20.0040.0196.29
5.0.10.0030.0206.28
5.0.00.0040.0356.27
4.4.90.0040.0184.78
4.4.80.0030.0164.75
4.4.70.0030.0174.75
4.4.60.0030.0204.75
4.4.50.0030.0164.77
4.4.40.0030.0254.71
4.4.30.0020.0174.76
4.4.20.0020.0174.84
4.4.10.0020.0174.85
4.4.00.0010.0274.76
4.3.110.0030.0164.67
4.3.100.0050.0184.66
4.3.90.0020.0154.64
4.3.80.0030.0264.58
4.3.70.0030.0144.63
4.3.60.0050.0134.63
4.3.50.0040.0144.63
4.3.40.0030.0264.54
4.3.30.0030.0153.33
4.3.20.0000.0203.30
4.3.10.0010.0183.26
4.3.00.0000.01718.23

preferences:
32.74 ms | 401 KiB | 5 Q