using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"'[\w ]+\$[\w]+[\w ]+'";
string input = @"$var = 'Hello world!';
echo 'Lorem ipsum $var dolor sit amet'; // Match this.
echo ""Lorem ipsum 'dolor sit amet $var consectetur' adipiscing elit""; // But not this.
echo ""Lorem ipsum 'dolor sit amet \$var consectetur' adipiscing elit""; // Or this.";
foreach (Match m in Regex.Matches(input, pattern))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx