PHP Функция не выполняет простую логическую задачу

Question

У меня этот простой скрипт php. Что он делает:

1. пользователь внесет свою зарплату.
2. пользователь выберет из раскрывающегося списка его тип членства.
3. PHP скрипт сделает простую логику, если пользователь выбирает членство типа как трудоустроенные, он будет выполнять и вернуть соответствующий ответ (пожалуйста, обратитесь к моей функции для лучшего понимания)
4. , если пользователь выбирает «Атман Занятый, Добровольный член или OFW», он снова выполнит его назначенной функцию

Что моя проблема:

проги RAM работает без ошибок. Проблема в том, что она ничего не отображает. Как будто ничего не происходит. В чем проблема?

Кстати, я только что научился PHP 8 часов назад, и я все еще нахожусь в начальной стадии, пытаясь поэкспериментировать с этими вещами. Пожалуйста, помогите мне. Застрял пару часов на этом. Пожалуйста, будьте нежны :)

<form method="POST"> 
Salary: <input id="salarytext" type="text" name="salary" onkeypress="return isNumberKey(event)"><br> 
Membership Type: 
<select name="membershiptype"> 
     <option value="employed">Employed</option> 
     <option value="SE">Self Employed</option> 
     <option value="VM">Voluntary Member</option> 
     <option value="OFW">OFW</option> 
</select> 

<br/> 

<input type="submit" /> 

</form> 

<?php 

$a = (isset($_POST['salary'])) ? $_POST['salary'] : ''; 
$b = (isset($_POST['membershiptype'])) ? $_POST['membershiptype'] : ''; 

function employed() { 

     if (empty ($a)) {echo "";} 
     elseif ($a<1000) {echo "Your Salary for the Period is $a. <br> You didn't reach the minimum compensation for the period. No SSS Contribution Deduction.";} 
     elseif ($a <1249.99) {echo "Your ER is 80.7 and Your EE is 33.3 sevmofw"; } 
     elseif ($a <1749.99) {echo "Your ER is 116 and Your EE is 50";} 
     elseif ($a <2249.99) {echo "Your ER is 151.3 and Your EE is 66.7";} 
     elseif ($a <2749.99) {echo "Your ER is 186.7 and Your EE is 83.3";} 
     elseif ($a <3249.99) {echo "Your ER is 222 and Your EE is 100";} 
     elseif ($a <3749.99) {echo "Your ER is 257.3 and Your EE is 116.7";} 
     elseif ($a <4249.99) {echo "Your ER is 292.7 and Your EE is 133.3";} 
     elseif ($a <4749.99) {echo "Your ER is 328 and Your EE is 150";} 
     elseif ($a <5249.99) {echo "Your ER is 363.3 and Your EE is 166.7";} 
     elseif ($a <5749.99) {echo "Your ER is 398.7 and Your EE is 183.3";} 
     elseif ($a <6249.99) {echo "Your ER is 434 and Your EE is 200";} 
     elseif ($a <6749.99) {echo "Your ER is 469.3 and Your EE is 216.7";} 
     elseif ($a <7249.99) {echo "Your ER is 504.7 and Your EE is 233.3";} 
     elseif ($a <7749.99) {echo "Your ER is 540 and Your EE is 250";} 
     elseif ($a <8249.99) {echo "Your ER is 575.3 and Your EE is 266.7";} 
     elseif ($a <8749.99) {echo "Your ER is 610.7 and Your EE is 283.3";} 
     elseif ($a <9249.99) {echo "Your ER is 646 and Your EE is 300";} 
     elseif ($a <9749.99) {echo "Your ER is 681.3 and Your EE is 316.7";} 
     elseif ($a <10249.99) {echo "Your ER is 716.7 and Your EE is 333.3";} 
     elseif ($a <10749.99) {echo "Your ER is 752 and Your EE is 350";} 
     elseif ($a <11249.99) {echo "Your ER is 787.3 and Your EE is 366.7";} 
     elseif ($a <11749.99) {echo "Your ER is 822.7 and Your EE is 383.3";} 
     elseif ($a <12249.99) {echo "Your ER is 858 and Your EE is 400";} 
     elseif ($a <12749.99) {echo "Your ER is 893.3 and Your EE is 416.7";} 
     elseif ($a <13249.99) {echo "Your ER is 928.7 and Your EE is 433.3";} 
     elseif ($a <13749.99) {echo "Your ER is 964 and Your EE is 450";} 
     elseif ($a <14249.99) {echo "Your ER is 999.3 and Your EE is 466.7";} 
     elseif ($a <14749.99) {echo "Your ER is 1034.7 and Your EE is 483.3";} 
     elseif ($a <=30000) {echo "Your ER is 1090 and Your EE is 500";} 
     elseif ($a > 30000) {echo "You reached the maximum. Your ER is 1090 and Your EE is 500";} 
} 

function sevmofw() { 

     if (empty ($a)) {echo "";} 
     elseif ($a<1000) {echo "NOT EMPLOYED. Your Salary for the Period is $a. <br> You didn't reach the minimum compensation for the period. No SSS Contribution Deduction.";} 
     elseif ($a <1249.99) {echo "NOT EMPLOYED. Your ER is 80.7 and Your EE is 33.3 sevmofw"; } 
     elseif ($a <1749.99) {echo "NOT EMPLOYED. Your ER is 116 and Your EE is 50";} 
     elseif ($a <2249.99) {echo "NOT EMPLOYED. Your ER is 151.3 and Your EE is 66.7";} 
     elseif ($a <2749.99) {echo "NOT EMPLOYED. Your ER is 186.7 and Your EE is 83.3";} 
     elseif ($a <3249.99) {echo "NOT EMPLOYED. Your ER is 222 and Your EE is 100";} 
     elseif ($a <3749.99) {echo "NOT EMPLOYED. Your ER is 257.3 and Your EE is 116.7";} 
     elseif ($a <4249.99) {echo "NOT EMPLOYED. Your ER is 292.7 and Your EE is 133.3";} 
     elseif ($a <4749.99) {echo "NOT EMPLOYED. Your ER is 328 and Your EE is 150";} 
     elseif ($a <5249.99) {echo "NOT EMPLOYED. Your ER is 363.3 and Your EE is 166.7";} 
     elseif ($a <5749.99) {echo "NOT EMPLOYED. Your ER is 398.7 and Your EE is 183.3";} 
     elseif ($a <6249.99) {echo "NOT EMPLOYED. Your ER is 434 and Your EE is 200";} 
     elseif ($a <6749.99) {echo "NOT EMPLOYED. Your ER is 469.3 and Your EE is 216.7";} 
     elseif ($a <7249.99) {echo "NOT EMPLOYED. Your ER is 504.7 and Your EE is 233.3";} 
     elseif ($a <7749.99) {echo "NOT EMPLOYED. Your ER is 540 and Your EE is 250";} 
     elseif ($a <8249.99) {echo "NOT EMPLOYED. Your ER is 575.3 and Your EE is 266.7";} 
     elseif ($a <8749.99) {echo "NOT EMPLOYED. Your ER is 610.7 and Your EE is 283.3";} 
     elseif ($a <9249.99) {echo "NOT EMPLOYED. Your ER is 646 and Your EE is 300";} 
     elseif ($a <9749.99) {echo "NOT EMPLOYED. Your ER is 681.3 and Your EE is 316.7";} 
     elseif ($a <10249.99) {echo "NOT EMPLOYED. Your ER is 716.7 and Your EE is 333.3";} 
     elseif ($a <10749.99) {echo "NOT EMPLOYED. Your ER is 752 and Your EE is 350";} 
     elseif ($a <11249.99) {echo "NOT EMPLOYED. Your ER is 787.3 and Your EE is 366.7";} 
     elseif ($a <11749.99) {echo "NOT EMPLOYED. Your ER is 822.7 and Your EE is 383.3";} 
     elseif ($a <12249.99) {echo "NOT EMPLOYED. Your ER is 858 and Your EE is 400";} 
     elseif ($a <12749.99) {echo "NOT EMPLOYED. Your ER is 893.3 and Your EE is 416.7";} 
     elseif ($a <13249.99) {echo "NOT EMPLOYED. Your ER is 928.7 and Your EE is 433.3";} 
     elseif ($a <13749.99) {echo "NOT EMPLOYED. Your ER is 964 and Your EE is 450";} 
     elseif ($a <14249.99) {echo "NOT EMPLOYED. Your ER is 999.3 and Your EE is 466.7";} 
     elseif ($a <14749.99) {echo "NOT EMPLOYED. Your ER is 1034.7 and Your EE is 483.3";} 
     elseif ($a <30000) {echo "NOT EMPLOYED. Your ER is 1090 and Your EE is 500";} 
     elseif ($a > 30000) {echo "You reached the maximum. Your ER is 1090 and Your EE is 500";} 
} 




if ($_POST['membershiptype'] == 'employed'){employed(); 
} elseif ($_POST['membershiptype'] == 'SE'){sevmofw(); 
} elseif ($_POST['membershiptype'] == 'VM'){sevmofw(); 
} elseif ($_POST['membershiptype'] == 'OFW'){sevmofw(); 
} 


?> 

Answer 1

Ваши $a и $b не входят в сферу применения. Вам необходимо указать в качестве аргументов функции.

/* SNIP */ 
function employed($a, $b) { //Note that the function now accepts two parameters. These will be available in the function. 

/* SNIP */ 
function sevmofw($a, $b) { //Same idea. 

/* SNIP */ 
if ($_POST['membershiptype'] == 'employed') { 
    employed($a, $b); //Pass the variables into the function from the outside. 
} 
elseif ($_POST['membershiptype'] == 'SE') { 
    sevmofw($a, $b); 
} 
elseif ($_POST['membershiptype'] == 'VM') { 
    sevmofw($a, $b); 
} 
elseif ($_POST['membershiptype'] == 'OFW') { 
    sevmofw($a, $b); 
} 

Answer 2

На самом деле, есть еще проблемы с вашим кодом, в том числе, смешивая бизнес и логику представления и обязанности, а также ...

Но, конкретно к вопросу,

Прежде всего, switch следует использовать вместо кучки if/elseif

Во-вторых,

у наша функция employed() не имеет понятия о том, что $a есть. Вы бы поставили его в качестве аргумента.

function employed($a){ 

    switch(true){ 

     case $a < 100: 

     echo "Your Salary for the Period is $a. <br> You didn't reach the minimum compensation for the period. No SSS Contribution Deduction." 

     break; 

     case $a < 1249.99: 
     echo "Your ER is 80.7 and Your EE is 33.3 sevmofw"; 
     break; 

     ...... 
    } 
} 

Это будет работать должным образом.