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PHP Fatal error: Using $this when not in object context

...it is still wrong. You can call an instance method with ::. It is against E_STRICT, but it does work as long as the method body does not reference the instance scope, e.g. uses $this. Also, self::foo will not point to $this->foo. It references a class constant. Both, self::foo and self::$foo woul...
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Parsing XML with namespace in Python via 'ElementTree'

... @Jon: register_namespace only influences serialisation, not search. – Martijn Pieters♦ Aug 20 '14 at 7:10 5 ...
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Read logcat programmatically within application

...7. */ public class Logger { // http://www.java2s.com/Tutorial/Java/0040__Data-Type/SimpleDateFormat.htm private static final String ANDROID_LOG_TIME_FORMAT = "MM-dd kk:mm:ss.SSS"; private static SimpleDateFormat logCatDate = new SimpleDateFormat(ANDROID_LOG_TIME_FORMAT); public static Str...
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Prepend a level to a pandas MultiIndex

...to the columns by adding axis=1, since the df.columns doesn't have the "set_index" method like the index, which always bugs me. – Rutger Kassies Feb 10 '17 at 12:32 2 ...
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How to capture no file for fs.readFileSync()?

... good code practices here! const content = await readFileAsync(path.join(__dirname, filePath), { encoding: 'utf8' }) return content; } Later can use this async function with try/catch from any other function: const anyOtherFun = async () => { try { const fileContent = await rea...
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How can I perform a `git pull` without re-entering my SSH password?

...reate a file called ~/.ssh/config and add the line: IdentityFile ~/.ssh/my_key2_rsa where ~/.ssh/my_key2_rsa is my key. share | improve this answer | follow ...
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How to find and return a duplicate value in array

...rocess huge data set. Looking for faster solution? Here you go! def find_one_using_hash_map(array) map = {} dup = nil array.each do |v| map[v] = (map[v] || 0 ) + 1 if map[v] > 1 dup = v break end end return dup end It's linear, O(n), but now needs to manag...
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Bootstrap 3 offset on right not left

...shan's answer Add this in the end of the calc-grid-column mixin in mixins/_grid-framework.scss, right below the $type == offset if condition. @if ($type == offset-right) { .col-#{$class}-offset-right-#{$index} { margin-right: percentage(($index / $grid-columns)); } } Modi...
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Override configured user for a single git commit

...blyUnpythonic you're welcome :) You can also create an alias in your .bash_aliases, and/or you can also set a pre-commit hook to reject commit when user is not defined. – Asenar Dec 18 '16 at 14:25 ...
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How to determine if a list of polygon points are in clockwise order?

...formula above? It ends with "xn*y1 - x1*yn"; when I believe it should be "x_n y_{n+1} - y_n x_{n-1}" (in LaTeX, at least). On the other hand, it's been ten years since I took any linear algebra classes. – Michael Eric Oberlin May 25 '15 at 20:25 ...