What is the symbol to connect two strings in php

The symbol to connect two strings in PHP is . (dot), which can be used to connect strings, variables and expressions. It should be noted that the connector is left associative and can connect multiple data types, but type conversion is required.

The symbol to connect two strings in PHP:

. (dot)

The symbol that connects two strings in PHP is . (dot) . It is used in the following scenarios:

• Concatenate two strings:

  $str1 = "Hello";
  $str2 = "World";
  $str3 = $str1 . $str2; // 输出：HelloWorld

• Concatenate strings and Variables:

  $name = "John";
  $str = "My name is " . $name; // 输出：My name is John

• Connect strings and expressions:

  $age = 30;
  $str = "My age is " . $age . " years old"; // 输出：My age is 30 years old

Notes:

• The dot connector has left associativity, which means it is applied from left to right.
• If you want to connect multiple strings, you can use multiple dot connectors.
• Connectors can also be used to connect other data types, such as numbers and Boolean values, but type conversion is required.

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