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What is causing “Unable to allocate memory for pool” in PHP?
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90
Probably is APC related.
For the people having this problem, please specify you .ini settings....
How to create a bash script to check the SSH connection?
...h -q user@downhost exit
$ echo $?
255
$ ssh -q user@uphost exit
$ echo $?
0
EDIT: Another approach would be to use nmap (you won't need to have keys or login-stuff):
$ a=`nmap uphost -PN -p ssh | grep open`
$ b=`nmap downhost -PN -p ssh | grep open`
$ echo $a
22/tcp open ssh
$ echo $b
(empty st...
Can scripts be inserted with innerHTML?
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edited Mar 25 '13 at 0:33
Travis J
74.9k3737 gold badges177177 silver badges244244 bronze badges
an...
If my interface must return Task what is the best way to have a no-operation implementation?
...ask.CompletedTask to accomplish this.
Pre .net 4.6:
Using Task.FromResult(0) or Task.FromResult<object>(null) will incur less overhead than creating a Task with a no-op expression. When creating a Task with a result pre-determined, there is no scheduling overhead involved.
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How to check whether an array is empty using PHP?
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20 Answers
20
Active
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Safely turning a JSON string into an object
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1990
JSON.parse(jsonString) is a pure JavaScript approach so long as you can guarantee a reasonably m...
Delete files older than 3 months old in a directory using .NET
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answered Feb 8 '10 at 14:57
Steve DannerSteve Danner
20.3k77 gold badges3333 silver badges4848 bronze badges
...
How to delete a stash created with git stash create?
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404
To delete a normal stash created with git stash , you want git stash drop or git stash drop sta...
Are there strongly-typed collections in Objective-C?
...<NSString*>* arr = @[@"str"];
NSString* string = [arr objectAtIndex:0];
NSNumber* number = [arr objectAtIndex:0]; // Warning: Incompatible pointer types initializing 'NSNumber *' with an expression of type 'NSString *'
And in Swift code, they will produce a compiler error:
var str: String ...