String Trim() in Javascript

<script language="javascript">
String.prototype.trim=function()
{
 return this.replace(/^\s*|\s*$/g, '');
}
String.prototype.ltrim=function()
{
 return this.replace(/^\s*/g, '');
}
String.prototype.rtrim=function()
{
 return this.replace(/\s*$/g, '');
}
var sf = " This is TEST message   ";
alert(sf.trim());
</script>

Remove blank or null elements from an array

Do you want to remove null or empty elements from an array in PHP? Following is the code that filtered those elements and return new filtered array. Array_filter is the php function that traverse an array and apply the conditions and filter them when codition return false;