将Javascript变量导入php而不使用post [duplicate]

Question

This question already has an answer here:

• What is the difference between client-side and server-side programming? 5 answers

Hi i have made a php function that has to be called from script tag since the value is generated from javascript. In short i have to execute php function dynamically in one page itself. The think i can achieve is that i can call a function with static parameters such as

$(".countryoptions").click(function(){
    console.log($(this).val());
    console.log(<?php echo json_encode(getRegions(NULL,NULL));?>);
    console.log(<?php echo json_encode(getRegions(NULL,"$(this).val()"));?>);
});

The first two values are been printed as expected but the third makes me sad, values are been passed as string ("$(this).val()") itself not the value. It may be stupid but is there any way to encounter this problem without POST request.

Thanks in advance.

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Answer 1

Javascript is a client-side language, and PHP is server-side. PHP has no control over the page elements once the page has been loaded. What you're trying to do now is echo the values in your console using <?php tags. This will not work.

If you want to access the PHP variables in your JS code, you can use a GET request or even POST.