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@ 2019-04-05T06:15:20Z

<?php

function loancalc() {
    $result = '0.00';

/** testing **/
$_POST['submit'] = true;
$_POST['principal'] = "7500.50";
$_POST['interest'] = "0.22";
$_POST['tenure'] = "7.7";
/** end testing **/

    if( isset( $_POST['submit'] )){
        // inspecting submitted values so that... 
        foreach ($_POST as $key => $value) {
               $bool[$key] = ctype_print( $value );
        }
		// ... if proven valid, then make assignments			    
		    if ( $bool['principal'] && $bool['interest'] && $bool['tenure'] ) {
    	 		  [$principal, $interestRate,$tenure] = [$_POST['principal'],
    		                                             $_POST['interest'],
    		                                             $_POST['tenure']];
    		      $result = $principal * $interestRate * $tenure;
            }
			echo number_format( $result,2,'.',',' ); // default English representation
    } // if posted ...
}// end func


loancalc();

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: ctype_print(): Argument of type bool will be interpreted as string in the future in /in/p2SSu on line 16 12,705.85

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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