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New self vs. new static
I am converting a m>PHP m> 5.3 library to work on m>PHP m> 5.2. The main thing standing in my way is the use of late static binding like return new static($options); , if I convert this to return new self($options) will I get the same results?
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Can enums be subclassed to add new elements?
I want to take an m>ex m>isting enum and add more elements to it as follows:
15 Answers
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Remove empty array elements
...ments that are i.e. m>ex m>act string '0', you will need a custom callback:
// m>PHP m> 7.4 and later
print_r(array_filter($linksArray, fn($value) => !is_null($value) && $value !== ''));
// m>PHP m> 5.3 and later
print_r(array_filter($linksArray, function($value) { return !is_null($value) && $...
Get names of all keys in the collection
...er as inspiration, I created an open source tool called Variety which does m>ex m>actly this: https://github.com/variety/variety
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Converting an integer to a string in m>PHP m>
Is there a way to convert an integer to a string in m>PHP m>?
14 Answers
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JMS Topic vs Queues
...nt to a queue are stored on disk or memory until someone picks it up or it m>ex m>pires. So queues (and durable subscriptions) need some active storage management, you need to think about slow consumers.
In most environments, I would argue, topics are the better choice because you can always add additio...
Convert Base64 string to an image file? [duplicate]
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The problem is that data:image/png;base64, is included in the encoded contents. This will result in invalid image data when the base64 function decodes it. Remove that data in the function before decoding the string, like so.
function base64_to_jpeg($base64_string, $output_file) {
// open ...
How can I convert ereg m>ex m>pressions to preg in m>PHP m>?
Since POSIX regular m>ex m>pressions (ereg) are deprecated since m>PHP m> 5.3.0, I'd like to know an easy way to convert the old m>ex m>pressions to PCRE (Perl Compatible Regular m>Ex m>pressions) (preg) .
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Find out HTTP method in m>PHP m> [duplicate]
...e superglobals alternatives (Is using superglobals directly good or bad in m>PHP m>? and similar questions), one may instead use automatic sanitizing
filter_input( \INPUT_SERVER, 'REQUEST_METHOD', \FILTER_SANITIZE_SPECIAL_CHARS )
(you might of course use other filter, eg. FILTER_SANITIZE_STRING - see ...