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Why you should care

[/vc_column_text][vc_column_text]When a variable without any operators is found within a ‘IF’ condition, in most of cases, it means that the developer wanted to perform some controls on this variable. However, in order to avoid any unexpected behavior during the execution, and depending on the verification type the developer intends to perform (existing/set or empty or true/false or null variable?), it is recommended to use the appropriate method, so that the risk of misinterpretation of the verification is limited.[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/2″][vc_column_text]

Business Impacts

It is recommended to use an explicit method to verify conditions of your variables, in order to avoid misinterpretation and possible bugs.[/vc_column_text][vc_empty_space][/vc_column_inner][/vc_row_inner][vc_empty_space height=”12px”][vc_empty_space][vc_single_image image=”5362″ img_size=”full”][vc_row_inner][vc_column_inner width=”1/2″][vc_column_text]

CAST Recommendations

CAST recommends checking your variables with the appropriate method, depending on your specific case (e.g. isset() to check the variable exists, empty(), is_null, etc.) in order to avoid any misinterpretation of the verification (boolean, empty, exist).
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References

https://stackoverflow.com/questions/6693876/how-exactly-does-ifvariable-work
https://stackoverflow.com/questions/30191521/php-check-if-variable-is-undefined[/vc_column_text][/vc_column_inner][/vc_row_inner][vc_separator][vc_column_text]

How we detect

[/vc_column_text][vc_column_text]This Code Insight counts one occurrence each time a variable is found in a codition, without any operator.

Example:

if($_GET[‘myvariable’]) { … }
if($foo) { … }[/vc_column_text][vc_empty_space][vc_row_inner][vc_column_inner][vc_single_image image=”5362″ img_size=”full”][vc_column_text]

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