100 lines
No EOL
5 KiB
JSON
100 lines
No EOL
5 KiB
JSON
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"title": [
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{
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"value": "Using readonly in PHP"
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}
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],
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"created": [
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"value": "2025-02-13T00:00:00+00:00"
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"value": "\n <p>Since PHP 8.1, properties on PHP classes have been able to be marked as <code>readonly<\/code>.<\/p>\n\n<p>Once they've been set, they can't be changed or overwritten.<\/p>\n\n<p>This is great for data transfer objects (DTOs) that you want to be immutable and know the values are the same as when they were set.<\/p>\n\n<p>Here's an example:<\/p>\n\n<pre><code class=\"php\">class MyDto {\n\n public function __construct(\n public readonly string $name,\n public readonly int $age,\n ) {\n }\n\n}\n<\/code><\/pre>\n\n<p>I don't need to make the properties private or protected and write getter methods for them.<\/p>\n\n<p>I can make them public, knowing the values can't be changed.<\/p>\n\n<h2 id=\"readonly-classes\">readonly classes<\/h2>\n\n<p>Since PHP 8.2, the entire class can be <code>readonly<\/code>, making the code cleaner and easier to read.<\/p>\n\n<p>This class does the same as the previous example:<\/p>\n\n<pre><code class=\"php\">readonly class MyDto {\n\n public function __construct(\n public string $name,\n public int $age,\n ) {\n }\n\n}\n<\/code><\/pre>\n\n<h2 id=\"here%27s-the-thing\">Here's the thing<\/h2>\n\n<p>This is a great example of how the PHP language continues to evolve and improve, and it's been a great way to make it easier to keep my code clean and with fewer bugs.<\/p>\n\n<p>If you want a way to easily add <code>readonly<\/code> to properties or classes, <a href=\"https:\/\/www.oliverdavies.uk\/daily\/2025\/01\/31\/rector\">take a look at Rector<\/a> which can automate it for you.<\/p>\n\n ",
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"processed": "\n <p>Since PHP 8.1, properties on PHP classes have been able to be marked as <code>readonly<\/code>.<\/p>\n\n<p>Once they've been set, they can't be changed or overwritten.<\/p>\n\n<p>This is great for data transfer objects (DTOs) that you want to be immutable and know the values are the same as when they were set.<\/p>\n\n<p>Here's an example:<\/p>\n\n<pre><code class=\"php\">class MyDto {\n\n public function __construct(\n public readonly string $name,\n public readonly int $age,\n ) {\n }\n\n}\n<\/code><\/pre>\n\n<p>I don't need to make the properties private or protected and write getter methods for them.<\/p>\n\n<p>I can make them public, knowing the values can't be changed.<\/p>\n\n<h2 id=\"readonly-classes\">readonly classes<\/h2>\n\n<p>Since PHP 8.2, the entire class can be <code>readonly<\/code>, making the code cleaner and easier to read.<\/p>\n\n<p>This class does the same as the previous example:<\/p>\n\n<pre><code class=\"php\">readonly class MyDto {\n\n public function __construct(\n public string $name,\n public int $age,\n ) {\n }\n\n}\n<\/code><\/pre>\n\n<h2 id=\"here%27s-the-thing\">Here's the thing<\/h2>\n\n<p>This is a great example of how the PHP language continues to evolve and improve, and it's been a great way to make it easier to keep my code clean and with fewer bugs.<\/p>\n\n<p>If you want a way to easily add <code>readonly<\/code> to properties or classes, <a href=\"https:\/\/www.oliverdavies.uk\/daily\/2025\/01\/31\/rector\">take a look at Rector<\/a> which can automate it for you.<\/p>\n\n ",
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"summary": null
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