Class cap_str

create a catcha picture (Completely Automated Public Turing to tell Computers from Humans Apart)

Methods summary

`public`	# `cap_str( )`
`public`	# `__destruct( )`
`public`	# `destroy( )`
`public`	# `create( $string )`
`public`	# `save( $filename )`
`public`	# `trim( )` trim the image size to the witdh and height of the text trim the image size to the witdh and height of the text

`public`	`$m_img`	# `null`
`public string`	`$m_font` fontname like "arial or /font/arial.ttf fontname like "arial or /font/arial.ttf	# `'arial'`
`public integer`	`$m_fsize` fontsize fontsize	# `15`
`public string`	`$m_fcolor` fontcolor as hexcode like #000000 fontcolor as hexcode like #000000	# `"#000000"`
`public string`	`$m_bgcolor` backgroundcolor as hexcode like #F0F0F0 backgroundcolor as hexcode like #F0F0F0	# `"#F0F0F0"`
`public string`	`$m_gridcolor` gridcolor as hexcode like #C8C8C8 gridcolor as hexcode like #C8C8C8	# `"#C8C8C8"`
`public string`	`$m_type` imagetype like "jpg" or "bmp" imagetype like "jpg" or "bmp"	# `'jpg'`
`public integer`	`$m_height` height of image height of image	# `40`
`public integer`	`$m_width` width of image width of image	# `80`
`public integer`	`$m_grid_grain_size` grain size of grid grain size of grid	# `10`
`public string`	`$m_transparentcolor` transparent color for gif as hexcode like #C8C8C8 transparent color for gif as hexcode like #C8C8C8	# `""`
`public boolean`	`$m_useGD2` true if you like to use version 2 of GD lib true if you like to use version 2 of GD lib	# `false`