In PHP, there is only one string operator, the concatenation operator (.) is used to concatenate two string values.
To join two variables together, use the dot operator (.):
Example:
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$txt1="Hello World";
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$txt2="1234";
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echo $txt1 .' ' . $txt2;
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?>
Using . and, is the same result; PHP is a language with loose syntax, array parameters, etc. use parameter separator,
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