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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">Just a guess. Try </p>
<p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; "> </p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;">if $tu {<br /> remove("location","$tu");<br /> }</span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">Not tested. A nonzero value may evaluate as TRUE.</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">On Tuesday, November 13, 2018 12:56:42 AM PST Pasan Meemaduma via Users wrote:<br /></p>
<p style=" margin-top:12px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:16px;">Hey,</span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:16px;"><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:16px;">Anyone have a suggestion for this?<br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:16px;"><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;">On Thursday, 8 November 2018, 8:09:50 AM GMT+5:30, Pasan Meemaduma <pasandev@ymail.com> wrote: </span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;"><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;"><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;">ERROR:core:comp_scriptvar: cannot get left var value<br /><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;">WARNING:core:do_action: error in expression at /etc/opensips/opensips.cfg:806</span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;"><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;">and line 806 contains following.</span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;"><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;"> if ( $tu != NULL ) {<br /> remove("location","$tu");<br /> }<br /><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;">any suggestion on how to test for NULL values without getting above error. I'm using opensips 2.3.5</span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;"><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;"><br /></span></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"><span style=" font-family:'Helvetica Neue,Helvetica,Arial,sans-serif'; font-size:13px; color:#26282a;"><br /></span></p>
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