title: How to search string in string php?
body: <p>I'm searching one PHP function or other solution for my problem.</p>
  
  <p>So, I have a string, this:</p>
  
  <pre><code>$string = 'dfdfdjdkfjsdklfjdksfjekrjekjfdlkfjsdlfdflokuki48(malac)kjdkfdjfkjkejrkerjer';
  </code></pre>
  
  <p>I'm searching one function, that it has the next parameters:</p>
  
  <pre><code>functionName ($string, $fromCharacters, $toCharacters);
  </code></pre>
  
  <p>And I run this function:</p>
  
  <pre><code>functionName ($string, 'lokuki48(', ')');
  </code></pre>
  
  <p>And I will get this: <code>'malac',</code> or max. this: <code>'lokuki48(malac)'.</code></p>
  
  <p>Do you know about PHP function or solution for my problem?</p>
  
  <p>I hope you understand my problem.</p>
  
  <p>Thank you!</p>