Remove Comma from string that is created using Implode in phpLearning Curve- Perfect Tutorial for the beginers | Learning Curve- Perfect Tutorial for the beginers

Following code will explain how to remove the comma inside a string

<?php
//handling the implode with null value in the middle of the string with comma
$myarry=array('hello','','are','you');
$dataVal = implode(',', $myarry);
echo $dataVal;echo "<br>";


//handling the implode with null value in the start of the string with comma
$myarry=array('','','are','you');
$dataVal = implode(',', $myarry);
$dataVal =  preg_replace('/^,+|,+$/', '', $dataVal);
echo $dataVal;echo "<br>";

//handling the implode with null value in the middle of the string with multiple commas
$myarry=array('hello','','','you');
$dataVal = implode(',', array_filter($myarry));
$dataVal =  preg_replace('/^,+|,+$/', '', $dataVal);
echo $dataVal;

?>

<?php

//handling the implode with null value in the middle of the string with comma

$myarry=array('hello','','are','you');

$dataVal = implode(',', $myarry);

echo $dataVal;echo "<br>";

//handling the implode with null value in the start of the string with comma

$myarry=array('','','are','you');

$dataVal = implode(',', $myarry);

$dataVal = preg_replace('/^,+|,+$/', '', $dataVal);

echo $dataVal;echo "<br>";

//handling the implode with null value in the middle of the string with multiple commas

$myarry=array('hello','','','you');

$dataVal = implode(',', array_filter($myarry));

$dataVal = preg_replace('/^,+|,+$/', '', $dataVal);

echo $dataVal;