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how to detect search engine bots with php?
How can one detect the search engine bots using php?
16 Answers
16
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HTTP redirect: 301 (permanent) vs. 302 (temporary)
... @BobStein-VisiBone for example of the 302 redirect: create a file old.php with the code <?php header("location: http://example.com/new.php"); ?> and file new.php - <?php echo 'I am new'; ?> and go to the link. There will redirect and display the text "I am new". Then replace the cod...
Is the practice of returning a C++ reference variable evil?
...
return i; // DON'T DO THIS.
}
That is all sorts of evil. The stack-allocated i will go away and you are referring to nothing. This is also evil:
int& getInt() {
int* i = new int;
return *i; // DON'T DO THIS.
}
Because now the client has to eventually do the strange:
int&...
Get a list of URLs from a site [closed]
... But there is a limit of 5000 links!..:( I'm looking for any free php sitemap generator script.
– Jenson M John
Aug 3 '13 at 10:25
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error C2664:...No user-defined-conversion operator available that can ...
...operator cannot be callederror C2664: '__thiscall std::list<int,class std::allocator<int> >::std::list<int,class std::allocator<int> >(unsigned...error C2664: '__thiscall std::list<int,class std::allocator<int> >::std::list<int,class std::allocator<int> >(unsigned int,const int &,
const class std::...
Null or default comparison of generic argument in C#
...ur example since the program exits straight away. However, every box is an allocation. If you deal with anything non-trivial, avoiding unnecessary allocations is always to be recommended. These allocations are unnecessary.
– Marc Gravell♦
Nov 7 '17 at 17:28
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Why don't structs support inheritance?
...ive on the heap and are referenced via reference pointers, but structs are allocated on the stack (unless they are boxed) or are allocated "inside" the memory occupied by a reference type on the heap.
share
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What actually causes a Stack Overflow error? [duplicate]
...ve programs, when there is a risk of writing into memory that had not been allocated for the buffer, and thus to corrupt some other memory locations. It's not the case at all.
JVM has a given memory allocated for each stack of each thread, and if an attempt to call a method happens to fill this mem...
What are some uses of template template parameters?
...t; std::endl;
}
NOTE: std::vector has two template parameters, type, and allocator, so we had to accept both of them. Fortunately, because of type deduction, we won't need to write out the exact type explicitly.
which you can use like this:
f<std::vector, int>(v); // v is of type std::vect...
PHP Fatal error: Cannot redeclare class
...x situation). The include_once tip helps to clarify an obscure feature of PHP.
– DavidHyogo
Mar 20 '13 at 2:12
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