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); echo "var3 = $var3"; var_dump($var3); 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)
8.3.60.0060.01216.75
8.3.50.0100.01019.86
8.3.40.0150.00018.79
8.3.30.0040.01119.17
8.3.20.0040.00420.31
8.3.10.0000.00823.65
8.3.00.0040.00419.30
8.2.180.0070.00716.75
8.2.170.0140.00022.96
8.2.160.0130.00320.39
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0050.00226.16
8.2.120.0070.00021.22
8.2.110.0030.00620.52
8.2.100.0060.00618.16
8.2.90.0030.00619.41
8.2.80.0040.00417.97
8.2.70.0050.00317.59
8.2.60.0000.00818.00
8.2.50.0040.00418.07
8.2.40.0040.00418.34
8.2.30.0060.00318.25
8.2.20.0000.00817.64
8.2.10.0040.00418.02
8.2.00.0000.00717.78
8.1.280.0120.00825.92
8.1.270.0080.00023.95
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.05
8.1.230.0090.00319.11
8.1.220.0000.00917.79
8.1.210.0030.00618.77
8.1.200.0030.00617.25
8.1.190.0030.00617.23
8.1.180.0000.00918.10
8.1.170.0030.00518.63
8.1.160.0000.00722.04
8.1.150.0000.00818.82
8.1.140.0000.00717.47
8.1.130.0000.00717.76
8.1.120.0000.00717.48
8.1.110.0040.00417.52
8.1.100.0000.00717.40
8.1.90.0050.00217.43
8.1.80.0040.00417.46
8.1.70.0000.00717.45
8.1.60.0000.00917.61
8.1.50.0000.00817.54
8.1.40.0070.00017.59
8.1.30.0000.00817.60
8.1.20.0000.00817.53
8.1.10.0040.00417.48
8.1.00.0000.00817.50
8.0.300.0040.00418.77
8.0.290.0030.00616.88
8.0.280.0000.00718.47
8.0.270.0000.00717.18
8.0.260.0000.00617.19
8.0.250.0050.00217.05
8.0.240.0000.00816.93
8.0.230.0000.00717.09
8.0.220.0000.00716.88
8.0.210.0070.00017.01
8.0.200.0040.00416.92
8.0.190.0000.00817.08
8.0.180.0070.00017.04
8.0.170.0000.00817.04
8.0.160.0040.00417.09
8.0.150.0050.00316.90
8.0.140.0030.00416.92
8.0.130.0030.00313.39
8.0.120.0030.00616.94
8.0.110.0040.00416.81
8.0.100.0000.00716.91
8.0.90.0070.00016.93
8.0.80.0030.01316.96
8.0.70.0040.00416.91
8.0.60.0040.00416.93
8.0.50.0020.00517.04
8.0.30.0090.01417.24
8.0.20.0150.00517.40
8.0.10.0040.00417.10
8.0.00.0130.00516.91
7.4.330.0000.00515.10
7.4.320.0040.00416.53
7.4.300.0060.00016.59
7.4.290.0040.00416.46
7.4.280.0000.00716.57
7.4.270.0040.00416.45
7.4.260.0000.00716.40
7.4.250.0070.00016.54
7.4.240.0030.00416.58
7.4.230.0030.00616.43
7.4.220.0120.00616.57
7.4.210.0090.00616.51
7.4.200.0050.00316.43
7.4.160.0140.00316.63
7.4.150.0070.01017.40
7.4.140.0160.00217.86
7.4.130.0120.00616.53
7.4.120.0080.01216.47
7.4.110.0120.00616.64
7.4.100.0030.01616.76
7.4.90.0150.00316.60
7.4.80.0030.01419.39
7.4.70.0100.00716.56
7.4.60.0040.01216.50
7.4.50.0030.00516.44
7.4.40.0070.01016.54
7.4.30.0130.00316.63
7.4.00.0120.00514.73
7.3.330.0000.00513.33
7.3.320.0000.00513.40
7.3.310.0040.00416.43
7.3.300.0030.00316.50
7.3.290.0120.00316.45
7.3.280.0060.01116.41
7.3.270.0160.01017.40
7.3.260.0040.01516.65
7.3.250.0140.01016.46
7.3.240.0110.00716.48
7.3.230.0100.01016.56
7.3.210.0110.00916.54
7.3.200.0120.01219.39
7.3.190.0120.01216.41
7.3.180.0050.01116.41
7.3.170.0160.00616.51
7.3.160.0130.00316.53
7.3.120.0060.01314.83
7.3.110.0060.01315.17
7.3.100.0060.01214.66
7.3.90.0060.00914.92
7.3.80.0090.00315.11
7.3.70.0070.00714.91
7.3.60.0040.00414.82
7.3.50.0090.00614.98
7.3.40.0110.00314.92
7.3.30.0070.00714.82
7.3.20.0120.00416.75
7.3.10.0090.00816.44
7.3.00.0080.00816.44
7.2.330.0150.00316.41
7.2.320.0100.00816.82
7.2.310.0110.00816.68
7.2.300.0080.00816.81
7.2.290.0030.01316.55
7.2.250.0100.01015.18
7.2.240.0060.00915.21
7.2.230.0030.01015.39
7.2.220.0070.00714.75
7.2.210.0030.00615.02
7.2.200.0050.00514.82
7.2.190.0030.01215.17
7.2.180.0030.01315.21
7.2.170.0040.01115.15
7.2.160.0090.00615.20
7.2.150.0070.01016.75
7.2.140.0090.00916.91
7.2.130.0090.00916.70
7.2.120.0090.00716.76
7.2.110.0080.00616.70
7.2.100.0090.00616.88
7.2.90.0070.00816.65
7.2.80.0110.00616.71
7.2.70.0020.01016.97
7.2.60.0150.00516.80
7.2.50.0030.01216.88
7.2.40.0050.00816.88
7.2.30.0060.00916.60
7.2.20.0040.01116.90
7.2.10.0070.00816.78
7.2.00.0090.00717.54
7.1.330.0040.01415.56
7.1.320.0040.01215.74
7.1.310.0060.00315.64
7.1.300.0000.01115.84
7.1.290.0030.01315.76
7.1.280.0080.00415.77
7.1.270.0070.00715.73
7.1.260.0060.00915.81
7.1.250.0090.00415.61
7.1.240.0000.01316.00
7.1.230.0020.01315.91
7.1.220.0060.00815.78
7.1.210.0080.00415.88
7.1.200.0180.00215.60
7.1.190.0070.00715.83
7.1.180.0000.00815.69
7.1.170.0000.01215.82
7.1.160.0040.00815.93
7.1.150.0060.00915.80
7.1.140.0030.00615.65
7.1.130.0030.01015.85
7.1.120.0000.01315.82
7.1.110.0100.00315.97
7.1.100.0090.01116.82
7.1.90.0030.01015.74
7.1.80.0110.00315.87
7.1.70.0020.00716.43
7.1.60.0070.01117.50
7.1.50.0030.01416.48
7.1.40.0070.00315.92
7.1.30.0000.01015.46
7.1.20.0030.01015.91
7.1.10.0070.00715.53
7.1.00.0070.04019.03
7.0.330.0040.00815.10
7.0.320.0000.01215.36
7.0.310.0070.00615.30
7.0.300.0070.00315.48
7.0.290.0100.00015.36
7.0.280.0040.00415.57
7.0.270.0070.00715.52
7.0.260.0030.01015.57
7.0.250.0030.01215.36
7.0.240.0070.00315.18
7.0.230.0000.01015.50
7.0.220.0030.01015.50
7.0.210.0000.01615.57
7.0.200.0020.00915.98
7.0.190.0030.01015.48
7.0.180.0070.00415.50
7.0.170.0030.00715.18
7.0.160.0000.00915.31
7.0.150.0040.00715.31
7.0.140.0030.03818.62
7.0.130.0030.01215.58
7.0.120.0060.00615.49
7.0.110.0060.00315.43
7.0.100.0090.00015.22
7.0.90.0070.00715.37
7.0.80.0040.00815.69
7.0.70.0060.00915.51
7.0.60.0110.01817.54
7.0.50.0040.04416.77
7.0.40.0110.04216.80
7.0.30.0290.02716.75
7.0.20.0120.03216.79
7.0.10.0050.04516.82
7.0.00.0050.04716.70
5.6.400.0080.00814.14
5.6.390.0070.00714.23
5.6.380.0000.01014.47
5.6.370.0120.00314.62
5.6.360.0030.00614.39
5.6.350.0140.00014.46
5.6.340.0000.01114.46
5.6.330.0100.00614.43
5.6.320.0030.01014.74
5.6.310.0030.01214.85
5.6.300.0130.00014.72
5.6.290.0030.01014.73
5.6.280.0030.03917.51
5.6.270.0000.01314.61
5.6.260.0060.01014.50
5.6.250.0070.00714.51
5.6.240.0070.00714.64
5.6.230.0000.01614.29
5.6.220.0090.00614.50
5.6.210.0100.03217.50
5.6.200.0040.02516.49
5.6.190.0110.03817.45
5.6.180.0220.02217.51
5.6.170.0100.02717.40
5.6.160.0040.02517.35
5.6.150.0090.04516.17
5.6.140.0080.02016.44
5.6.130.0030.03116.33
5.6.120.0110.03817.51
5.6.110.0000.02917.56
5.6.100.0050.03917.73
5.6.90.0090.04217.70
5.6.80.0070.04517.19
5.6.70.0040.00714.46
5.6.60.0070.00314.25
5.6.50.0000.01214.53
5.6.40.0030.01014.30
5.6.30.0000.01414.35
5.6.20.0060.00914.45
5.6.10.0040.00914.48
5.6.00.0060.00614.44
5.5.380.0100.00314.34
5.5.370.0070.01014.10
5.5.360.0120.00314.42
5.5.350.0060.03917.58
5.5.340.0070.02016.12
5.5.330.0040.04717.40
5.5.320.0060.03617.25
5.5.310.0200.03317.36
5.5.300.0110.04016.21
5.5.290.0050.04516.11
5.5.280.0060.02817.59
5.5.270.0100.04017.65
5.5.260.0050.04117.56
5.5.250.0050.02517.52
5.5.240.0070.04917.33
5.5.230.0030.00613.96
5.5.220.0030.00614.05
5.5.210.0000.01414.35
5.5.200.0060.00614.36
5.5.190.0070.00414.11
5.5.180.0000.01114.60
5.5.170.0030.00714.50
5.5.160.0170.00014.53
5.5.150.0060.00914.55
5.5.140.0080.01214.39
5.5.130.0060.01314.45
5.5.120.0050.01314.13
5.5.110.0130.00513.96
5.5.100.0100.01014.53
5.5.90.0060.01114.01
5.5.80.0090.01214.06
5.5.70.0080.01114.66
5.5.60.0040.01714.17
5.5.50.0120.01214.56
5.5.40.0080.01113.85
5.5.30.0150.00614.48
5.5.20.0140.00513.84
5.5.10.0160.00314.36
5.5.00.0090.01214.35
5.4.450.0120.02915.15
5.4.440.0130.03015.27
5.4.430.0170.02215.35
5.4.420.0050.02415.15
5.4.410.0050.02515.28
5.4.400.0120.01815.01
5.4.390.0080.02715.20
5.4.380.0150.03714.83
5.4.370.0230.02515.04
5.4.360.0200.02314.86
5.4.350.0140.03514.77
5.4.340.0180.03814.86
5.4.330.0080.00411.11
5.4.320.0020.02511.83
5.4.310.0070.02411.74
5.4.300.0050.02511.75
5.4.290.0060.02211.88
5.4.280.0050.02611.70
5.4.270.0060.02211.72
5.4.260.0070.02111.76
5.4.250.0100.02111.80
5.4.240.0050.02411.76
5.4.230.0080.02411.75
5.4.220.0050.02211.69
5.4.210.0050.02311.71
5.4.200.0050.02811.70
5.4.190.0050.02211.69
5.4.180.0090.02311.76
5.4.170.0070.02411.77
5.4.160.0070.02211.74
5.4.150.0060.02411.76
5.4.140.0030.02511.71
5.4.130.0070.02111.64
5.4.120.0050.02411.62
5.4.110.0060.02211.50
5.4.100.0070.02111.62
5.4.90.0060.02011.60
5.4.80.0020.02611.62
5.4.70.0020.02311.56
5.4.60.0060.02311.58
5.4.50.0020.02611.60
5.4.40.0040.02311.58
5.4.30.0050.02211.49
5.4.20.0070.01911.63
5.4.10.0020.02411.49
5.4.00.0090.01811.25
5.3.290.0080.04512.80
5.3.280.0060.03912.71
5.3.270.0050.04012.72
5.3.260.0090.03612.72
5.3.250.0060.03712.72
5.3.240.0060.03812.72
5.3.230.0060.03812.71
5.3.220.0030.04012.68
5.3.210.0070.04812.68
5.3.200.0050.03912.68
5.3.190.0050.03912.68
5.3.180.0090.04712.67
5.3.170.0120.03712.66
5.3.160.0050.04012.68
5.3.150.0060.04112.67
5.3.140.0050.03812.66
5.3.130.0050.04212.66
5.3.120.0030.04212.66
5.3.110.0070.04012.66
5.3.100.0060.03812.13
5.3.90.0060.03712.11
5.3.80.0060.03612.11
5.3.70.0080.04212.11
5.3.60.0110.04312.09
5.3.50.0080.04712.04
5.3.40.0080.03212.04
5.3.30.0090.03111.99
5.3.20.0070.03411.77
5.3.10.0050.03711.74
5.3.00.0070.03611.73
5.2.170.0040.0319.23
5.2.160.0040.0309.23
5.2.150.0060.0299.23
5.2.140.0070.0289.23
5.2.130.0050.0309.19
5.2.120.0060.0279.19
5.2.110.0080.0269.19
5.2.100.0090.0299.19
5.2.90.0060.0339.18
5.2.80.0050.0349.18
5.2.70.0070.0279.18
5.2.60.0060.0299.14
5.2.50.0090.0269.11
5.2.40.0040.0299.08
5.2.30.0060.0369.05
5.2.20.0050.0299.05
5.2.10.0030.0328.95
5.2.00.0050.0298.82
5.1.60.0050.0248.10
5.1.50.0110.0238.09
5.1.40.0010.0338.09
5.1.30.0050.0268.43
5.1.20.0030.0288.45
5.1.10.0060.0258.18
5.1.00.0040.0268.18
5.0.50.0070.0266.66
5.0.40.0050.0266.51
5.0.30.0030.0346.32
5.0.20.0050.0206.29
5.0.10.0070.0276.28
5.0.00.0050.0336.27
4.4.90.0040.0154.78
4.4.80.0060.0134.75
4.4.70.0040.0154.75
4.4.60.0020.0164.75
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0030.0154.76
4.4.20.0020.0164.84
4.4.10.0010.0174.85
4.4.00.0020.0264.76
4.3.110.0010.0174.66
4.3.100.0020.0194.66
4.3.90.0050.0124.64
4.3.80.0030.0264.58
4.3.70.0040.0144.63
4.3.60.0000.0174.63
4.3.50.0020.0164.62
4.3.40.0030.0244.54
4.3.30.0010.0173.32
4.3.20.0000.0233.30
4.3.10.0020.0213.26
4.3.00.0000.01718.23

preferences:
50.52 ms | 400 KiB | 5 Q