Hi

I'm trying to come up with a regex match that will match a string that does NOT contain an underscore "_". i.e match "foo" but not "foo_bar"

Second part of my question is for words that do contain underscores - I want to retrieve everything before the underscore. i.e. for "foo_bar" match and return "foo"

Thanks

1:

PHP Code:

<?php
$str = "test_";
if(!preg_match("/_/",$str)){
echo "No underscore.";
}
?>

2:

PHP Code:

<?php
$string = "test_ing";
$arr = explode("_",$string); // Split the string on "_"
echo $arr[0]; // Echo the part before the "_"
?>

1:
If you really want to do it with only a regex and not with the '!':

PHP Code:

<?php
$str = "test";
preg_match("/[^_]*/",$str,$matches);
if(strlen($matches[0])<strlen($str)){
echo "Underscore spotted!";
}
?>