How can I solve this error A PHP Error was encountered

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Please give some idea. how to solve the error?

        echo "<td class='bold'>Race Category<span class='star'>*</span></td>";
    $array_all=array('name'=>'race_category','value'=>$s_race_category,'type'=>'RACE_CATEGORY','style'=>"class='selectbox'",'javascript'=>'','default'=>'');
    echo "<td>";
    echo $this->model_students->getAll($array_all);
    echo "</td>";

The error:

A PHP Error was encountered
Severity: Notice
Message: Undefined variable: s_race_category
Filename: templates/forms.php
Line Number: 46

A PHP Error was encountered
Severity: Notice
Message: Undefined variable: s_programme
Filename: templates/forms.php
Line Number: 124
Jul 30, 2022 in PHP by Kithuzzz
• 38,010 points
1,184 views

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