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<?php $str = 'test-test-example-demo-1a-3321-0-3555-0'; $patterns = [ '/[0-9]+[a-zA-Z]/', //удаляем все цифры после которых есть буквы '/[a-zA-Z][0-9]*/', //удаляем все буквы и цифры после них, если они имеются '/-(?=-)/', //удаляем все оставшиеся парные '-' '/^-/', //удаляем '-' в начале строки '/-$/' //удаляем '-' в конце строки ]; echo preg_replace($patterns, '', $str);
Output for git.master, git.master_jit, rfc.property-hooks
3321-0-3555-0

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