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5 tips in PHP 🐘

Saymon Tavares on August 24, 2021

In this article, I’ll show you 10 tips that can improve your PHP code 🔍 🐘 In order to make this article easier to read, I’ll write some pieces of c...
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lito profile image
Lito • 
    private function getAccessor(): PropertyAccess
    {
        return $this->propertyAccessor ?? $this->propertyAccessor = PropertyAccess::createPropertyAccessor(); 
    }
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Is same as:

    private function getAccessor(): PropertyAccess
    {
        return $this->propertyAccessor ??= PropertyAccess::createPropertyAccessor(); 
    }
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nfcristea profile image
Florin Cristea • • Edited

??= will also assign the value on first call, besides checking if it's set, meaning that the second time it gets reached it will have a value assigned and PropertyAccess::createPropertyAccessor() will no longer get called.
?? is just a classic isset check meaning the call to createProperyAccesor() is made every time it gets reached.
They're quite different although they look similar.

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saymon profile image
Saymon Tavares •

thanks guy!

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bdelespierre profile image
Benjamin Delespierre •

Here's another one for you: extract variables from string using patterns

$str = "123:456";

preg_match('/(\d+):(\d+)/', $str, $matches);

list(, $a, $b) = $matches + [null, null, null];

var_dump($a, $b); // 123, 456
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