PHP无法在WHILE LOOP中调用脚本中的函数

Question

“。$ row ['title']。”“; / *按钮无法在脚本中调用函数* /                                                  echo“”;                                                        $ query = mysqli_query（$ link，“SELECT * FROM careerdetails WHERE careerTitle ='”。$ row ['title']。“'”）;

                                                        while（$ row1 = mysqli_fetch_array（$ query））{                                                             echo'

';                                                                 echo'
• ';                                                                     echo''。$ row1 ['qualifications']。'';                                                                 echo'
';                                                             echo'

';                                                         }                                                  回声'';                                          }                             ？＆GT;                                                                                           function myFunction（id）{                                     警报（ID）;                                     var x = document.getElementById（id）;                                     if（x.className.indexOf（“w3-show”）== -1）{                                         x.className + =“w3-show”;                                     } else {                                         x.className = x.className.replace（“w3-show”，“”）;                                     }                                 }                             

Answer 1

删除（id）$index++

周围的单引号

  echo "<button onclick='myFunction(" .$index++.")' 
        class='w3-button w3-block w3-left-align'>".$row['title']."</button>";