dynamic name property for php

Question

I use this code for generating dynamic name attribute in my HTML page based on index key for each input tag that user add with a plus button:

var afterRemove = function afterRemove() {
    var setIndex = function setIndex(inputNamePrefix) {
        $('input[name^="' + inputNamePrefix + '"]').each(function (index, value) {
            $(this).attr('name', '' + inputNamePrefix + index);
        });
    };
    ['jobTitle', 'organName', 'jobYearFrom', 'jobYearTo'].forEach(function (prefix) {
        setIndex(prefix);
    });
    ['research', 'researchComment'].forEach(function (prefix) {
        setIndex(prefix);
    });
    ['teachingsub', 'teachingpr', 'teachingplace'].forEach(function (prefix) {
        setIndex(prefix);
    });
    ['teacherMobile', 'teacherTel', 'teacherEmail'].forEach(function (prefix) {
        setIndex(prefix);
    });
    ['fieldofstudy', 'univercity', 'eduYearFrom', 'eduYearTo', 'eduPaper'].forEach(function (prefix) {
        setIndex(prefix);
    });

};

Now I need to get each name attribute dynamically in PHP. For example, user may have 3 phoneNumber: {teacherMobile0,teacherMobile1,teacherMobile2} . For each theme I need a variable in PHP. How can I know how many name has been generated by user?

Answer 1

Ok I assume you have a table of inputs and you let the user add rows to that table with a click on a button which runs a bit of javascript to add a new row

If you name the fields as

<td><input name="fieldofstudy[]" .....></td>
<td><input name="univercity[]" .....></td>
etc etc

You no longer have to worry about adding prefix or suffix counts to these input.

Then all you need to do to create a new row in javascript is clone the last row in the table, blank the .val() of each cell and a new row is ready to go

Then in PHP you will receive an array for each variable ie

$_POST['fieldofstudy'][]
$_POST['univercity'][]

Which you can process as

foreach ( $_POST['fieldofstudy'] as $idx => $fieldofstudy) {
    echo $fieldofstudy;
    echo $_POST['univercity'][$idx];
}