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How to get an array of specific “key” in multidimensional array without looping

... Since php 5.5, you can use array_column: $ids = array_column($users, 'id'); This is the preferred option on any modern project. However, if you must support php > 5.5, the following alternatives exist: Since php 5.3, you can...
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PHP expresses two different strings to be the same [duplicate]

...and 272E-3063 will both be float(0) because they are too small. For == in php, If you compare a number with a string or the comparison involves numerical strings, then each string is converted to a number and the comparison performed numerically. http://php.net/manual/en/language.operato...
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Accurate way to measure execution times of php scripts

I want to know how many milliseconds a PHP for-loop takes to execute. 14 Answers 14 ...
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Fastest way to check if a string is JSON in PHP?

... It's worth noting that this works correctly in theory. Unfortunately PHP's json_decode function has a number of bugs, which will allow invalid JSON to be parsed in odd ways. isJson('0123') should return false because 0123 is not JSON, however isJson('123') should return true because 123 is JSO...
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How do I get a file name from a full path with PHP?

... You're looking for basename. The example from the PHP manual: <?php $path = "/home/httpd/html/index.php"; $file = basename($path); // $file is set to "index.php" $file = basename($path, ".php"); // $file is set to "index" ?> ...
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GCM with PHP (Google Cloud Messaging)

How can I integrate the new Google Cloud Messaging in a PHP backend? 13 Answers 13 ...
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NOW() function in PHP

Is there a PHP function that returns the date and time in the same format as the MySQL function NOW() ? 20 Answers ...
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PHP: exceptions vs errors?

Maybe I'm missing it somewhere in the PHP manual, but what exactly is the difference between an error and an exception? The only difference that I can see is that errors and exceptions are handled differently. But what causes an exception and what causes an error? ...
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Is == in PHP a case-sensitive string comparison?

I was unable to find this on php.net. Is the double equal sign ( == ) case sensitive when used to compare strings in PHP? 7...
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How to get URL of current page in PHP [duplicate]

In PHP, how can I get the URL of the current page? Preferably just the parts after http://domain.com . 5 Answers ...