Web Reference: String Operators ¶ There are two string operators. The first is the concatenation operator ('.'), which returns the concatenation of its right and left arguments. The second is the concatenating assignment operator ('.= '), which appends the argument on the right side to the argument on the left side. PHP Comparison Operators The comparison operators are used to compare two values (number or string) and return a boolean result. There are two operators in PHP for working with string data types: concatenation operator (".") and the concatenation assignment operator (".="). Read this chapter to learn how these operators work in PHP.
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