3v4l.org

run code in 300+ PHP versions simultaneously
<?php function mb_str_pad($str, $pad_len, $pad_str = ' ', $dir = STR_PAD_RIGHT, $encoding = NULL) { $encoding = $encoding === NULL ? mb_internal_encoding() : $encoding; $padBefore = $dir === STR_PAD_BOTH || $dir === STR_PAD_LEFT; $padAfter = $dir === STR_PAD_BOTH || $dir === STR_PAD_RIGHT; $pad_len -= mb_strlen($str, $encoding); $targetLen = $padBefore && $padAfter ? $pad_len / 2 : $pad_len; $strToRepeatLen = mb_strlen($pad_str, $encoding); $repeatTimes = ceil($targetLen / $strToRepeatLen); $repeatedString = str_repeat($pad_str, max(0, $repeatTimes)); // safe if used with valid utf-8 strings $before = $padBefore ? mb_substr($repeatedString, 0, floor($targetLen), $encoding) : ''; $after = $padAfter ? mb_substr($repeatedString, 0, ceil($targetLen), $encoding) : ''; return $before . $str . $after; } // same random testing... foreach([STR_PAD_BOTH, STR_PAD_LEFT, STR_PAD_RIGHT] as $padType) { echo str_pad("FOO", 11, "aeo", $padType) . "\n"; echo mb_str_pad("FOO", 11, "àèò", $padType, "UTF-8") . "\n"; echo str_pad("FOO", 10, "aeo", $padType) . "\n"; echo mb_str_pad("FOO", 10, "àèò", $padType, "UTF-8") . "\n"; echo str_pad("BAAZ", 11, "aeo", $padType) . "\n"; echo mb_str_pad("BAAZ", 11, "àèò", $padType, "UTF-8") . "\n"; echo str_pad("BAAZ", 10, "aeo", $padType) . "\n"; echo mb_str_pad("BAAZ", 10, "àèò", $padType, "UTF-8") . "\n"; echo str_pad("FOOBAR", 6, "aeo", $padType) . "\n"; echo mb_str_pad("FOOBAR", 6, "àèò", $padType, "UTF-8") . "\n"; echo str_pad("FOOBAR", 1, "aeo", $padType) . "\n"; echo mb_str_pad("FOOBAR", 1, "àèò", $padType, "UTF-8") . "\n"; echo str_pad("FOOBAR", 0, "aeo", $padType) . "\n"; echo mb_str_pad("FOOBAR", 0, "àèò", $padType, "UTF-8") . "\n"; echo str_pad("FOOBAR", -10, "aeo", $padType) . "\n"; echo mb_str_pad("FOOBAR", -10, "àèò", $padType, "UTF-8") . "\n"; echo "--\n"; } ?>

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)
8.3.60.0140.00716.63
8.3.50.0110.00522.15
8.3.40.0030.01218.86
8.3.30.0030.01019.04
8.3.20.0090.00020.16
8.3.10.0030.00620.36
8.3.00.0000.00817.38
8.2.180.0100.00625.92
8.2.170.0130.00318.96
8.2.160.0070.01322.96
8.2.150.0060.00324.18
8.2.140.0030.00624.66
8.2.130.0080.00026.16
8.2.120.0080.00019.91
8.2.110.0060.00322.05
8.2.100.0060.00618.04
8.2.90.0000.00818.33
8.2.80.0050.00318.03
8.2.70.0060.00317.75
8.2.60.0030.00618.05
8.2.50.0000.00818.28
8.2.40.0000.00920.59
8.2.30.0000.00819.43
8.2.20.0050.00517.86
8.2.10.0080.00018.33
8.2.00.0020.00517.81
8.1.280.0030.01725.92
8.1.270.0090.00922.10
8.1.260.0050.00226.35
8.1.250.0000.00928.09
8.1.240.0080.00023.91
8.1.230.0070.00420.87
8.1.220.0040.00417.88
8.1.210.0040.00418.79
8.1.200.0060.00317.38
8.1.190.0000.00817.36
8.1.180.0000.00818.10
8.1.170.0030.00518.67
8.1.160.0040.00419.00
8.1.150.0050.00319.00
8.1.140.0040.00417.43
8.1.130.0030.00318.00
8.1.120.0050.00217.59
8.1.110.0000.00717.56
8.1.100.0030.00317.45
8.1.90.0030.00517.55
8.1.80.0050.00317.62
8.1.70.0030.00317.43
8.1.60.0040.00417.75
8.1.50.0030.00617.71
8.1.40.0000.00817.63
8.1.30.0040.00417.75
8.1.20.0000.00817.67
8.1.10.0040.00417.59
8.1.00.0100.00317.68
8.0.300.0070.00020.29
8.0.290.0080.00016.73
8.0.280.0070.00018.49
8.0.270.0030.00317.42
8.0.260.0030.00317.34
8.0.250.0060.00317.17
8.0.240.0030.00317.02
8.0.230.0040.00417.05
8.0.220.0070.00017.12
8.0.210.0030.00417.06
8.0.200.0050.00317.15
8.0.190.0000.00717.01
8.0.180.0000.00717.06
8.0.170.0060.00316.96
8.0.160.0040.00417.04
8.0.150.0040.00417.05
8.0.140.0070.00016.90
8.0.130.0030.00313.57
8.0.120.0000.00816.90
8.0.110.0030.00517.02
8.0.100.0080.00017.11
8.0.90.0000.00716.98
8.0.80.0100.00617.04
8.0.70.0050.00217.06
8.0.60.0030.00516.95
8.0.50.0000.00816.89
8.0.30.0130.00917.41
8.0.20.0130.00717.40
8.0.10.0030.00617.07
8.0.00.0120.00917.08
7.4.330.0070.00015.02
7.4.320.0030.00316.59
7.4.300.0030.00316.65
7.4.290.0030.00416.55
7.4.280.0060.00316.64
7.4.270.0000.00716.70
7.4.260.0020.00516.57
7.4.250.0000.00816.59
7.4.240.0050.00316.66
7.4.230.0000.00716.70
7.4.220.0060.01216.82
7.4.210.0090.00916.64
7.4.200.0030.00316.70
7.4.150.0060.01217.40
7.4.140.0130.00817.86
7.4.130.0110.00616.65
7.4.120.0110.00916.65
7.4.110.0060.01216.63
7.4.100.0130.00516.61
7.4.90.0140.00416.61
7.4.80.0070.01016.67
7.4.70.0040.01316.67
7.4.60.0120.01216.61
7.4.50.0060.00616.55
7.4.40.0050.01216.58
7.4.30.0180.00416.57
7.4.20.0150.00616.53
7.4.10.0120.00715.90
7.4.00.0070.01215.58
7.3.330.0000.00613.29
7.3.320.0030.00313.55
7.3.310.0070.00016.37
7.3.300.0030.00316.48
7.3.290.0070.01116.45
7.3.280.0080.00916.45
7.3.270.0160.00317.40
7.3.260.0140.00416.81
7.3.250.0120.00916.56
7.3.240.0120.00616.65
7.3.230.0110.00716.53
7.3.210.0050.01316.46
7.3.200.0100.00818.08
7.3.190.0090.01116.53
7.3.180.0090.00716.61
7.3.170.0110.00616.71
7.3.160.0160.00516.74
7.3.150.0090.00916.39
7.3.140.0090.00916.43
7.3.130.0160.00315.70
7.3.120.0080.01115.78
7.3.110.0100.00915.77
7.3.100.0060.00815.87
7.3.90.0070.00815.66
7.3.80.0090.00715.68
7.3.70.0110.00715.79
7.3.60.0060.01115.80
7.3.50.0100.00815.75
7.3.40.0070.01115.63
7.3.30.0080.00715.61
7.3.20.0100.00816.51
7.3.10.0310.00715.88
7.3.00.0360.00616.01
7.2.330.0080.01016.83
7.2.320.0190.00416.80
7.2.310.0060.01316.89
7.2.300.0160.00216.76
7.2.290.0140.00516.83
7.2.280.0070.01316.69
7.2.270.0130.00616.79
7.2.260.0080.01315.82
7.2.250.0120.00915.78
7.2.240.0120.00815.95
7.2.230.0090.00716.01
7.2.220.0090.01315.98
7.2.210.0100.00815.91
7.2.200.0060.01015.92
7.2.190.0120.00416.04
7.2.180.0050.01515.82
7.2.170.0050.01115.92
7.2.160.0110.00515.95
7.2.150.0110.00916.92
7.2.140.0100.00516.90
7.2.130.0200.01416.28
7.2.120.0310.00716.37
7.2.110.0310.00716.35
7.2.100.0510.00816.32
7.2.90.0230.00816.29
7.2.80.0260.00816.29
7.2.70.0260.00916.21
7.2.60.0190.00816.37
7.2.50.0240.00916.21
7.2.40.0200.01016.37
7.2.30.0240.00916.35
7.2.20.0280.00616.31
7.2.10.0220.00616.37
7.2.00.0210.00916.97
7.1.330.0100.01115.60
7.1.320.0050.01015.82
7.1.310.0060.01015.76
7.1.300.0080.01315.65
7.1.290.0110.00915.70
7.1.280.0070.01115.60
7.1.270.0060.01115.54
7.1.260.0100.00515.85
7.1.250.0240.01115.12
7.1.240.0390.00415.15
7.1.230.0330.00915.25
7.1.220.0230.01215.14
7.1.210.0300.00815.14
7.1.200.0280.00915.40
7.1.190.0350.00815.25
7.1.180.0250.00715.08
7.1.170.0270.00715.17
7.1.160.0240.00615.24
7.1.150.0280.00915.11
7.1.140.0250.00815.29
7.1.130.0190.00915.21
7.1.120.0360.00515.17
7.1.110.0210.01115.24
7.1.100.0220.00815.87
7.1.90.0290.00415.79
7.1.80.0210.00915.99
7.1.70.0140.00816.05
7.1.60.0200.01320.01
7.1.50.0210.00919.47
7.1.40.0260.00920.07
7.1.30.0260.00920.04
7.1.20.0190.01020.11
7.1.10.0190.00915.53
7.1.00.0130.02216.86
7.0.330.0530.00714.41
7.0.320.0360.01414.53
7.0.310.0390.00814.52
7.0.300.0330.01014.38
7.0.290.0340.01114.53
7.0.280.0370.00314.62
7.0.270.0380.01014.53
7.0.260.0410.00714.55
7.0.250.0410.01014.60
7.0.240.0320.00914.50
7.0.230.1380.01314.53
7.0.220.0310.01014.60
7.0.210.0360.01314.50
7.0.200.0180.00815.58
7.0.190.0230.00715.32
7.0.180.0310.00715.01
7.0.170.0210.00615.02
7.0.160.0230.00815.22
7.0.150.0270.00815.10
7.0.140.0170.02616.98
7.0.130.0180.00915.22
7.0.120.0200.00815.23
7.0.110.0270.00515.05
7.0.100.0170.02616.43
7.0.90.0170.02516.40
7.0.80.0180.02216.47
7.0.70.0200.01516.35
7.0.60.0120.03116.31
7.0.50.0160.02616.52
7.0.40.0210.01616.48
7.0.30.0180.01216.41
7.0.20.0220.02216.33
7.0.10.0220.02016.41
7.0.00.0140.02016.33
5.6.400.0250.00816.22
5.6.390.0150.00616.37
5.6.380.0170.01215.40
5.6.370.0210.00515.33
5.6.360.0160.01015.24
5.6.350.0180.00715.16
5.6.340.0090.00915.15
5.6.330.0090.01015.30
5.6.320.0140.00615.54
5.6.310.0100.01115.37
5.6.300.0120.02517.14
5.6.290.0090.03017.09
5.6.280.0110.03618.16
5.6.270.0110.03217.29
5.6.260.0080.02817.09
5.6.250.0100.03518.02
5.6.240.0110.02918.03
5.6.230.0100.04318.00
5.6.220.0100.04117.97
5.6.210.0100.04417.98
5.6.200.0070.04418.03
5.6.190.0110.03918.08
5.6.180.0120.03718.02
5.6.170.0140.03818.02
5.6.160.0110.03918.06
5.6.150.0080.04318.12
5.6.140.0090.02918.02
5.6.130.0090.03818.07
5.6.120.0080.04318.14
5.6.110.0090.04118.17
5.6.100.0130.02818.05
5.6.90.0090.04118.05
5.6.80.0120.04017.65
5.6.70.0100.03717.77
5.6.60.0170.03817.80
5.6.50.0100.03517.79
5.6.40.0100.04117.71
5.6.30.0100.03217.85
5.6.20.0080.03117.69
5.6.10.0120.04017.72
5.6.00.0140.03917.74
5.5.380.0090.04216.29
5.5.370.0100.03916.31
5.5.360.0110.03116.38
5.5.350.0120.03516.40
5.5.340.0140.02916.52
5.5.330.0110.03516.40
5.5.320.0130.04116.43
5.5.310.0110.03716.61
5.5.300.0140.03616.54
5.5.290.0130.03316.50
5.5.280.0150.03816.59
5.5.270.0110.03916.34
5.5.260.0080.03316.52
5.5.250.0110.04316.33
5.5.240.0130.03716.21
5.5.230.0090.03316.09
5.5.220.0100.03616.21
5.5.210.0110.03316.13
5.5.200.0140.03516.08
5.5.190.0080.03816.13
5.5.180.0140.03016.19
5.5.170.0240.00613.61
5.5.160.0120.03616.18
5.5.150.0140.02916.14
5.5.140.0090.03416.24
5.5.130.0110.03816.13
5.5.120.0090.03716.25
5.5.110.0130.03716.09
5.5.100.0120.03516.15
5.5.90.0100.02616.15
5.5.80.0140.02916.14
5.5.70.0150.02916.17
5.5.60.0110.03416.10
5.5.50.0080.03615.96
5.5.40.0120.03616.19
5.5.30.0100.02816.09
5.5.20.0120.03316.13
5.5.10.0110.03116.10
5.5.00.0090.04116.04
5.4.450.0120.03115.76
5.4.440.0150.03615.63
5.4.430.0110.02715.81
5.4.420.0100.03915.71
5.4.410.0140.02515.60
5.4.400.0130.03315.55
5.4.390.0090.04115.58
5.4.380.0100.03915.52
5.4.370.0090.02615.42
5.4.360.0090.03715.41
5.4.350.0100.02915.46
5.4.340.0120.03015.45
5.4.330.0120.00912.08
5.4.320.0100.02515.49
5.4.310.0130.03415.53
5.4.300.0100.03715.56
5.4.290.0120.02515.45
5.4.280.0070.03615.56
5.4.270.0110.02515.50
5.4.260.0080.03515.48
5.4.250.0090.03315.51
5.4.240.0100.03815.54
5.4.230.0120.03115.49
5.4.220.0100.03615.56
5.4.210.0080.03915.55
5.4.200.0110.03915.57
5.4.190.0110.03315.35
5.4.180.0070.03215.46
5.4.170.0120.03215.44
5.4.160.0140.02615.45
5.4.150.0120.03215.44
5.4.140.0110.03514.20
5.4.130.0080.03414.25
5.4.120.0060.03214.28
5.4.110.0090.03314.24
5.4.100.0090.03314.31
5.4.90.0130.03114.23
5.4.80.0080.03314.20
5.4.70.0090.03014.30
5.4.60.0100.03514.21
5.4.50.0080.04014.16
5.4.40.0150.03114.24
5.4.30.0120.02714.24
5.4.20.0080.03314.31
5.4.10.0090.02814.25
5.4.00.0100.02813.96
5.3.290.0270.00313.08
5.3.280.0160.01212.81
5.3.270.0160.01112.91
5.3.260.0230.00312.87
5.3.250.0100.01412.87
5.3.240.0120.01212.65
5.3.230.0170.00612.81
5.3.220.0160.00712.73
5.3.210.0160.00812.67
5.3.200.0160.00612.82
5.3.190.0090.01412.73
5.3.180.0150.00912.90
5.3.170.0140.00912.99
5.3.160.0160.00713.04
5.3.150.0190.01212.92
5.3.140.0090.01012.96
5.3.130.0140.00912.93
5.3.120.0090.01412.79
5.3.110.0070.00712.79
5.3.100.0090.00612.93
5.3.90.0040.01212.91
5.3.80.0060.01012.72
5.3.70.0070.01812.73
5.3.60.0100.01312.96
5.3.50.0140.01012.77
5.3.40.0110.00912.81
5.3.30.0120.00912.70
5.3.20.0150.00712.66
5.3.10.0070.00712.49
5.3.00.0140.01112.45
5.2.170.0140.00611.96
5.2.160.0130.01111.80
5.2.150.0090.00911.86
5.2.140.0180.00011.90
5.2.130.0120.00511.74
5.2.120.0040.00811.74
5.2.110.0120.00611.78
5.2.100.0070.01212.04
5.2.90.0110.00611.91
5.2.80.0030.01011.84
5.2.70.0040.01111.86
5.2.60.0100.00511.68
5.2.50.0140.00611.70
5.2.40.0150.00911.88
5.2.30.0130.00411.68
5.2.20.0130.00011.67
5.2.10.0190.00311.60
5.2.00.0160.00711.40
5.1.60.0120.00911.04
5.1.50.0100.00710.79
5.1.40.0110.00311.05
5.1.30.0040.01511.00
5.1.20.0160.00410.85
5.1.10.0080.01310.86
5.1.00.0140.00310.98
5.0.50.0000.00910.06
5.0.40.0090.0069.93
5.0.30.0030.0099.93
5.0.20.0060.00910.11
5.0.10.0070.0079.93
5.0.00.0110.0009.93
4.4.90.0060.0029.93
4.4.80.0070.0039.93
4.4.70.0070.0009.93
4.4.60.0110.0009.93
4.4.50.0030.0069.93
4.4.40.0090.0009.93
4.4.30.0050.0039.93
4.4.20.0070.0039.93
4.4.10.0000.0079.93
4.4.00.0070.0049.93
4.3.110.0000.0069.93
4.3.100.0090.0009.93
4.3.90.0120.0009.93
4.3.80.0040.0049.93
4.3.70.0000.0079.93
4.3.60.0060.0039.93
4.3.50.0090.0009.93
4.3.40.0020.0049.93
4.3.30.0060.0009.93
4.3.20.0030.0059.93
4.3.10.0060.0009.93
4.3.00.0070.0009.93

preferences:
61.08 ms | 400 KiB | 5 Q