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99 lines
2.3 KiB
Markdown
99 lines
2.3 KiB
Markdown
---
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id: ec38d6f0-c958-478b-9701-99a535b9adc9
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title: Symfony String Component
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---
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# Interfaces
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- [Stringable Interface](20201116125716-stringable_interface)
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# Syntax
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- [containsAny()](20201116130503-containsany)
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- [fromRandom()](20201116142317-fromrandom)
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- [reverse()](20201116130738-reverse)
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- [truncate()](20201116130210-truncate)
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## Misc
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### String conversion
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``` php
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use Symfony\Component\String\ByteString;
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use Symfony\Component\String\CodePointString;
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use Symfony\Component\String\UnicodeString;
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$content = new CodePointString('Hello world');
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$content = new UnicodeString('नमस्ते दुनिया');
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$content = new ByteString('さよなら');
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$content = (new CodePointString('hello'))->toUnicodeString();
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$content = UnicodeString::fromCodePoints(0x68, 0x65, 0x6C, 0x6C, 0x6F)->toByteString();
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```
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``` php
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use function Symfony\Component\String\b;
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use function Symfony\Component\String\u;
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// both are equivalent
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$content = b('hello');
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$content = new ByteString('hello');
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// both are equivalent
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$content = u('hello');
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$content = new UnicodeString('hello');
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```
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### Object-oriented strings
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``` php
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// using PHP functions
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if ('.html' === substr($theString, -strlen('.html'))) {
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// ...
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}
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// using Symfony's String
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if (u($theString)->endsWith('.html')) {
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// ...
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}
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```
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``` php
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$text =u('This is a déjà-vu situation.')
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->trimEnd('.')
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->replace('déjà-vu', 'jamais-vu')
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->append('!');
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// $text = 'This is a jamais-vu situation!'
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```
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``` php
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u('FOO Bar')->folded(); // 'foo bar'
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u('Die O\'Brian Straße')->folded(); // "die o'brian strasse"
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```
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### String Slugger
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``` php
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use Symfony\Component\String\Slugger\AsciiSlugger;
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$slugger = new AsciiSlugger();
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$slugger->slug('Стойността трябва', '-', 'bg'); // 'Stoinostta-tryabva'
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$slugger->slug('Αυτή η τιμή πρέπει', '-', 'el'); // 'Avti-i-timi-prepi'
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$slugger->slug('该变量的值应为', '-', 'zh'); // 'gai-bian-liang-de-zhi-ying-wei'
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$slugger->slug('Wôrķšƥáçè sèťtïñğš'); // 'Workspace-settings'
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```
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### Twig Integration
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``` twig
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{{ 'Lorem ipsum'|u.truncate(8, '...') }}
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{# prints: Lorem... #}
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{{ 'SymfonyStringWithTwig'|u.snake }}
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{# prints: symfony_string_with_twig #}
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```
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# Related
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- [Symfony Components](20201110152627-symfony_components)
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- [Symfony 5.0](20201113172025-symfony_5_0)
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