PHP syntax symbols-& gt ;=& gt;.: What do they mean ?, -& Gt; used in the class to call non-static attributes or methods of the class, such as: $ this-& gt; aaa ;=& gt; symbols between keys and values in the array, such: array ('a' = & gt; 'value ');. several syntax symbols connected to PHP
->
=>
.
:
::
What do they mean?
------ Solution --------------------
-> Used in the class, call non-static attributes or methods of the class, such as: $ this-> aaa;
=> Symbols between keys and values in the array, such as array ('a' => 'value ');
. Connection string
: Call static attributes or methods
: Alternative syntax
The basic form of alternative syntax:
Replace Left curly braces ({) with colons (:), and change right curly braces (}) with endif;, endwhile;, endfor;, endforeach; and endswitch;
For example:
Is a negative number.
The preceding statement is equivalent
Is a negative number.
------ Solution --------------------
-> Used in the class, call non-static attributes or methods of the class, such as: $ this-> aaa;
=> Symbols between keys and values in the array, such as array ('a' => 'value ');
. Connection string
: Call static attributes or methods
: Alternative syntax
The basic form of alternative syntax:
Replace Left curly braces ({) with colons (:), and change right curly braces (}) with endif;, endwhile;, endfor;, endforeach; and endswitch;
For example:
Is a negative number.
The preceding statement is equivalent
Is a negative number.
------ Solution --------------------
-> Object methods or attributes
=> Array element value
. Connection string
: Alternative syntax
: Call static attributes or methods
------ Solution --------------------
-> Used in the class, call non-static attributes or methods of the class, such as: $ this-> aaa;
=> Symbols between keys and values in the array, such as array ('a' => 'value ');
. Connection string
: Call static attributes or methods
: Alternative syntax
The basic form of alternative syntax:
Replace Left curly braces ({) with colons (:), and change right curly braces (}) with endif;, endwhile;, endfor;, endforeach; and endswitch;
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