操作字符串

  • strpos() - Find the position of the first occurrence of a substring in a string
  • stripos() - Find the position of the first occurrence of a case-insensitive substring in a string
  • strripos() - Find the position of the last occurrence of a case-insensitive substring in a string
  • strrchr() - Find the last occurrence of a character in a string
  • substr() - Return part of a string

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