I have a loop in php
foreach($Array as $key =>$value)
{
$TotalLine .= " Qualification =".$value." OR ";
}
echo $TotalLine;
Prints
Qualification =1 OR Qualification =2 OR Qualification =3 OR Qualification =4 OR
Now i need to remove last OR in that line, Desired Output must look like
Qualification =1 OR Qualification =2 OR Qualification =3 OR Qualification =4
How to do this. Any help appreciated.
you can use php rtrim() function for this
foreach($Array as $key =>$value)
{
$TotalLine .= " Qualification =".$value." OR ";
}
echo rtrim($TotalLine,"OR");
Try using the end() function like this :
foreach($Array as $key =>$value){
$TotalLine .= " Qualification =".$value;
if(!end($value)){
$TotalLine .= " OR ";
}
}
Alternative soulution without foreach loop.
$array = [1,2,3,4];
$string = implode(" OR Qualification =", $array);
echo "Qualification =$string";
Simple use !empty()
PHP :
<?php
$Array =[1,2,3,4];
$TotalLine="";
foreach($Array as $key =>$value)
{
!empty($TotalLine) ? $TotalLine .= " OR Qualification =".$value : $TotalLine = "Qualification =".$value;
}
echo $TotalLine;
?>
OUTPUT :
Qualification =1 OR Qualification =2 OR Qualification =3 OR Qualification =4
You can use array and implode:
$TotalLine = [];
foreach ($Array as $key => $value) {
$TotalLine[] = " Qualification =" . $value;
}
echo implode(" OR ", $TotalLine);
Or, if you don't want this method, you can use rtrim:
rtrim($TotalLine," OR");
Here, it is not needed to use the last space like " OR " since trim considers every character as a mask. Read the doc
But former one is most preferable and neat. You use arrays and then join the values using implode function. The latter one trims out the last specified string.
Be aware: When you use trim the characters in the mask will be removed. Here when your value is just numeric there will be no problem. But when you have string like ROAR your last R gets trimmed out as well. Demo for it too. Just for your knowledge! Or, this article that evolved out of this question.
trim is doing than implode.
rtrim version, I'd wonder why you were building a string only to then remove some of it. This is one of those questions that's trying to fix the wrong problem - the question shouldn't be "how to I remove the last part of a string", it should be "how do I build a string with a common separator". If it was worded like that, no one would be talking about rtrim.
rtrim() is a series of characters, and not an exact matching string is important... two spaces in this case is meaningless, and if the last characters of the last $value include O or R it will give unexpected results
rtrim($TotalLine," OR"); and not rtrim($TotalLine," OR "); . Also I updated with the notice as well for this case: eval.in/857916