What is the symbol that connects two strings in php?

The operator that connects two strings in PHP is the dot operator (.), and its syntax is $str1 . $str2. The dot operator joins two string values ​​together, returning a new string. Notes include: only applies to string values, has lower priority, and can be used to concatenate arrays.

Operator to connect two strings in PHP

In PHP, you can connect two strings Use the dot operator (.).

Syntax:

<code class="php">$str1 . $str2;</code>

Where:

• $str1 and $str2 are The string to be concatenated.
• The dot operator (.) concatenates two strings together.

Example:

<code class="php">$str1 = "Hello";
$str2 = "world";
$result = $str1 . $str2; //结果为 "Hello world"</code>

The dot operator concatenates $str1 and $str2 into new characters string$result.

Note:

• The dot operator can only connect string type values.
• Concatenating null values ​​produces no output.
• The dot operator has lower precedence than arithmetic operators and string comparison operators. Therefore, parentheses can be used to force precedence when needed.
• The dot operator can also be used to connect arrays.

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