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When a closure does not use `$this`, it can be made `static` for improved performance. Static closures are supported in PHP since PHP 5.4. Props jrf, hellofromTonya, swissspidy, SergeyBiryukov. See #53359. git-svn-id: https://develop.svn.wordpress.org/trunk@51657 602fd350-edb4-49c9-b593-d223f7449a82
21 lines
505 B
PHP
21 lines
505 B
PHP
<?php
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/**
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* Legacy plural form function.
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*
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* @param int $nplurals
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* @param string $expression
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*/
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function tests_make_plural_form_function( $nplurals, $expression ) {
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$closure = static function ( $n ) use ( $nplurals, $expression ) {
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$expression = str_replace( 'n', $n, $expression );
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// phpcs:ignore Squiz.PHP.Eval -- This is test code, not production.
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$index = (int) eval( 'return ' . $expression . ';' );
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return ( $index < $nplurals ) ? $index : $nplurals - 1;
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};
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return $closure;
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}
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