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Tactics for using PHP in a high-load site

...me as (sigh) an alien that has just landed on the planet, albeit one that knows PHP and a few optimisation techniques. 23 A...
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Django - what is the difference between render(), render_to_response() and direct_to_template()?

...automatically use RequestContext that I will most definitely be using from now on. 2020 EDIT: It should be noted that render_to_response() was removed in Django 3.0 https://docs.djangoproject.com/en/1.8/topics/http/shortcuts/#render-to-response render_to_response(template[, dictionary][, contex...
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How can I check if a checkbox is checked?

... didn't check it! Let me check it for you."); } } Your script doesn't know what the variable remember is. You need to get the element first using getElementById(). share | improve this answer ...
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What's the fastest way to merge/join data.frames in R?

...version.string # R version 2.15.1 (2012-06-22) Please note that I don't know plyr well so please do check with Hadley before relying on the plyr timings here. Also note that the data.table do include the time to convert to data.table and set the key, for fareness. This answer has been updated s...
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How to hide Soft Keyboard when activity starts

...an Edittext with android:windowSoftInputMode="stateVisible" in Manifest. Now the keyboard will be shown when I start the activity. How to hide it? I cannot use android:windowSoftInputMode="stateHidden because when keyboard is visible then minimize the app and resume it the keyboard should be vis...
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How do I get the directory from a file's full path?

...ing a relative name. I hadn't spotted that the path will be absolute. I've now got both versions :) – Jon Skeet Mar 23 '09 at 17:57 ...
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getActionBar() returns null

...ionBar() instead of getActionBar() * Update: The class ActionBarActivity now is deprecated: import android.support.v7.app.ActionBarActivity; I recommend to use: import android.support.v7.app.AppCompatActivity share ...
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A regular expression to exclude a word/string

...h words, you need a conjuction: ^/(?!ignoreme$)(?!ignoreme2$)[a-z0-9]+$ Now both conditions must be true (neither ignoreme nor ignoreme2 is allowed) to have a match. share | improve this answer ...
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Split string into an array in Bash

... @l0b0: Thanks. I don't know what I was thinking. I like to use declare -p array for test output, by the way. – Paused until further notice. May 14 '12 at 16:33 ...
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Find out whether radio button is checked with JQuery?

...) alert('is checked'); alert('check-checky-check was changed'); }); Now when you programmatically change the state, you have to trigger this event also: $('#radio_button').attr("checked", "checked"); $('#radio_button').click(); ...