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Do I have to guard against SQL injection if I used a dropdown?
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You could do something as simple as the following example to make sure the posted size is what you expect.
$possibleOptions = array('All', 'Large', 'Medium', 'Small');
if(in_array($_POST['size'], $possibleOptions)) {
// Expected
} el...
curl_exec() always returns false
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Error checking and handling is the programmer's friend. Check the return values of the initializing and executing cURL functions. curl_error() and curl_errno() will contain further information in case of failure:
try {
$ch = curl_init();
// Check if initial...
What's the difference between nohup and ampersand
...be worth noting that just & does cause the subcommand to not receive some signals (e.g. SIGINT). nohup essentially adds SIGHUP to the list of signals that are not propagated.
– studgeek
May 22 at 21:38
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MySQL Creating tables with Foreign Keys giving errno: 150
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I had the same problem with ALTER TABLE ADD FOREIGN KEY.
After an hour, I found that these conditions must be satisfied to not get error 150:
The Parent table must exist before you define a foreign key to reference it. You must define...
Creating an object: with or without `new` [duplicate]
...already been asked (say, here ); yet I still don't understand it. So, let me ask it.
2 Answers
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bundle install returns “Could not locate Gemfile”
...eers and thanks from the sleep-deprived future!
– Jaime
Sep 17 '14 at 18:23
1
BTW you can find yo...
Why can't stash be applied to the working directory?
... because it would be overwriting an existing file.
To fix, you could do something like deleting that file (it's okay, it's still in the repo), applying your stash, and then replacing the stashed version of the file with the in-repo version as appropriate.
Edit: It's also possible that the file has...
How to count objects in PowerShell?
...urn objects instead of text. So for example, running get-alias returns me a number of System.Management.Automation.AliasInfo objects:
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How does Access-Control-Allow-Origin header work?
Apparently, I have completely misunderstood its semantics. I thought of something like this:
16 Answers
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“unary operator expected” error in Bash if condition
...ket version [ ... ]. Inside a [[ ... ]] compound, word-splitting and pathname expansion are not applied to words, so you can rely on
if [[ $aug1 == "and" ]];
to compare the value of $aug1 with the string and.
If you use [ ... ], you always need to remember to double quote variables like this:
i...