Anyone got an idea of an internal PHP function that would enable me to insert a symbol e.g. &#39;-&#39; after every 4 characters in a String? e.g. 12345678 becomes 1234-5678.<br clear="all"><br>-- <br><span style="background-color:rgb(255, 255, 255);color:rgb(0, 0, 0)"><div>

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</span></div><div><span style="background-color:rgb(255, 255, 255)">Thanks and Regards,</span><br style="background-color:rgb(255, 255, 255);color:rgb(102, 102, 102)"><span style="background-color:rgb(255, 255, 255)"><font color="#666666">Erick Njenga Nyachwaya,</font></span></div>

<div><span style="background-color:rgb(255, 255, 255)"></span><span style="background-color:rgb(255, 255, 255)"><font color="#999999">M: +254-725-008-790</font></span></div><div><span style="background-color:rgb(255, 255, 255)"><font color="#999999"><br>

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