php的帮助文档,涉及到PHP的案例和基本语法,以及实际应用内容

												 				  Get the width of a string				  				 				 				 swf_startsymbol				 swf_translate				 SWF Functions				 PHP Manual								 				  swf_textwidth				  (PHP 4)swf_textwidth — Get the width of a string								 				 				 				  Description				  				   float swf_textwidth				    ( string $str				   )								  				   Gives the width of the string in pixels, using the current font and font				   size.				  				 												 				  Parameters				  				   								    								     str												     								      				       The string.				      				     								    								   								  				 												 				  Return Values				  				   Returns the line width, as a float.				  				 												 swf_startsymbol				 swf_translate				 SWF Functions				 PHP Manual