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How do I remove the last comma from a string using PHP?

...This doesn't work in a loop that adds a comma at the end as it will remove all the commas. – LizardKG Mar 11 at 21:35 add a comment  |  ...
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Do I have to guard against SQL injection if I used a dropdown?

... make sure the posted size is what you expect. $possibleOptions = array('All', 'Large', 'Medium', 'Small'); if(in_array($_POST['size'], $possibleOptions)) { // Expected } else { // Not Expected } Then use mysqli_* if you are using a version of php >= 5.3.0 which you should be, to sav...
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How to check if mod_rewrite is enabled in php?

...ng mod_php, you can use apache_get_modules(). This will return an array of all enabled modules, so to check if mod_rewrite is enabled, you could simply do in_array('mod_rewrite', apache_get_modules()); Unfortunately, you're most likely trying to do this with CGI, which makes it a little bit more ...
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【解决】标准库std::min/std::max 与 Windows.h中的宏 min/max 冲突问题 - ...

...解决】标准库std::min/std::max 与 Windows.h中的宏 min/max 冲突问题在包含了Windows h的 C++ 源代码中使用std::min std::max会出现错误。int main(){ int x = std::max(0, 1); int y = std::min(-1, 0);}error C2589: & 在包含了 Windows.h 的 C++ 源代码中使用 std::...
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How to get a substring between two strings in PHP?

...ieves that. I do not want to think about regex (well, I could do one but really don't think it's the best way to go). Thinking of strpos and substr functions. Here's an example: ...
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Default value in Doctrine

... I use both this and the accepted answer to cover all bases. Also just a note that you can also do: options={"default": 0} Be careful to use " and not ', as it causes errors in my version of doctrine. – Scott Flack Jun 17 '14 at 7:37 ...
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How to loop through an associative array and get the key? [duplicate]

... using PHP 5, you should avoid using foreach by reference values and since all foreaches use internal array pointer ( current($Array) ) nesting foreaches or using PHP array functions can do weird things. – Chaoix Jul 12 '19 at 15:13 ...
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Difference between \w and \b regular expression meta characters

...chor like the caret and the dollar sign. It matches at a position that is called a "word boundary". This match is zero-length. There are three different positions that qualify as word boundaries: Before the first character in the string, if the first character is a word character. After the last ...
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What are five things you hate about your favorite language? [closed]

...ld be matched to another NULL value. If you understand this (what also is called ternary logic) than you might understand the reason for introducing the "IS" operator for testing against NULL. – Alex Aug 26 '10 at 16:58 ...
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How to post JSON to PHP with curl

I may be way off base, but I've been trying all afternoon to run the curl post command in this recess PHP framework tutorial. What I don't understand is how is PHP supposed to interpret my POST, it always comes up as an empty array. ...