Prestashop - 1.4 Guide de l'utilisateur télécharger pdf (Page 30)

Variable names

1. Corresponding to data from databases: $my_var

2. Corresponding to algorithm: $my_var

3. The visibility of a member variable does not affect its name: private

$my_var

Assignments

1. There should be a space between variable and operators:

3. $my_var = 17;

4. $a = $b;

Operators

1. "+", "-", "*", "/", "=" and any combination of them (e.g. "/=") need

a space between

left and right members

3. $a + 17;

4. $result = $b / 2;

5. $i += 34;

6. "." don't have space between left and right members

8. echo $a.$b;

9. $c = $d.$this->foo();

Recommendation

For performance reasons, please don't abusing of use of

concatenation.

10. ".=" need a space between left and right members

11.

12. $a .= 'Debug';

Statements

1. if, elseif, while, for: presence of a space between the if keyword and

the bracket

3. if (<condition>)

4. while (<condition>)

5. When a combination of if and else are used and that they should

both return a value, the else has to be avoided.

7. if (<condition>)

8. return false;

9. return true;

Recommendation

We recommend one return per method / function

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Prestashop - 1.4 Guide de l'utilisateur Page 30