---input---
<?php
$pipe = popen( "flamegraph.pl --title=\"$title\" > /var/www/html/w/docs/flamegraph.svg", 'w' );

---tokens---
'<?php'       Comment.Preproc
'\n'          Text

'$pipe'       Name.Variable
' '           Text
'='           Operator
' '           Text
'popen'       Name.Builtin
'('           Punctuation
' '           Text
'"'           Literal.String.Double
'flamegraph.pl --title=' Literal.String.Double
'\\"'         Literal.String.Escape
'$title'      Literal.String.Interpol
'\\"'         Literal.String.Escape
' > /var/www/html/w/docs/flamegraph.svg' Literal.String.Double
'"'           Literal.String.Double
','           Punctuation
' '           Text
"'w'"         Literal.String.Single
' '           Text
');'          Punctuation
'\n'          Text