Index of all elements
[ a ]
[ c ]
[ d ]
[ f ]
[ g ]
[ i ]
[ l ]
[ m ]
[ s ]
[ t ]
[ u ]
[ w ]
a
- $arc_linethrough
- in file securimage.php, variable Securimage::$arc_linethrough
For added security, it is a good idea to draw arced lines over the letters to make it harder for bots to segment the letters.
Two arced lines will be drawn over the text on each side of the image.
This is currently expirimental and may be off in certain configurations.
- $arc_line_colors
- in file securimage.php, variable Securimage::$arc_line_colors
The colors or color of the arced lines.
Use HTML hex notation with preceding # sign, and separate each value with a comma.
This should be similar to your font color for single color images.
- $audio_path
- in file securimage.php, variable Securimage::$audio_path
Full path to the WAV files to use to make the audio files, include trailing /.
Name Files [A-Z0-9].wav
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c
- $charset
- in file securimage.php, variable Securimage::$charset
The character set for individual characters in the image.
Letters are converted to uppercase.
The font must support the letters or there may be problematic substitutions.
- $code_length
- in file securimage.php, variable Securimage::$code_length
The length of the code to generate.
- check
- in file securimage.php, method Securimage::check()
Validate the code entered by the user.
- createCode
- in file securimage.php, method Securimage::createCode()
Create a code and save to the session
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d
- $draw_angled_lines
- in file securimage.php, variable Securimage::$draw_angled_lines
Set to true to draw angled lines on the image in addition to the horizontal and vertical lines.
- $draw_lines
- in file securimage.php, variable Securimage::$draw_lines
Draw vertical and horizontal lines on the image.
- $draw_lines_over_text
- in file securimage.php, variable Securimage::$draw_lines_over_text
Draw the lines over the text.
If fales lines will be drawn before putting the text on the image.
This can make the image hard for humans to read depending on the line thickness and distance.
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f
- $font_size
- in file securimage.php, variable Securimage::$font_size
The font size.
Depending on your version of GD, this should be specified as the pixel size (GD1) or point size (GD2)
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g
- $gd_font_file
- in file securimage.php, variable Securimage::$gd_font_file
The GD font to use.
Internal gd fonts can be loaded by their number.
Alternatively, a file path can be given and the font will be loaded from file.
- $gd_font_size
- in file securimage.php, variable Securimage::$gd_font_size
The approximate size of the font in pixels.
This does not control the size of the font because that is determined by the GD font itself.
This is used to aid the calculations of positioning used by this class.
- getAudibleCode
- in file securimage.php, method Securimage::getAudibleCode()
Get WAV file data of the spoken code.
This is appropriate for output to the browser as audio/x-wav
- getCode
- in file securimage.php, method Securimage::getCode()
Get the captcha code
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i
- $image_bg_color
- in file securimage.php, variable Securimage::$image_bg_color
The background color for the image.
This should be specified in HTML hex format.
Make sure to include the preceding # sign!
- $image_height
- in file securimage.php, variable Securimage::$image_height
The desired width of the CAPTCHA image.
- $image_type
- in file securimage.php, variable Securimage::$image_type
The image format for output.
Valid options: SI_IMAGE_PNG, SI_IMAGE_JPG, SI_IMAGE_GIF
- $image_width
- in file securimage.php, variable Securimage::$image_width
The desired width of the CAPTCHA image.
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- $line_color
- in file securimage.php, variable Securimage::$line_color
The color of the lines drawn on the image.
Use HTML hex format with preceding # sign.
- $line_distance
- in file securimage.php, variable Securimage::$line_distance
How far apart to space the lines from eachother in pixels.
- $line_thickness
- in file securimage.php, variable Securimage::$line_thickness
How thick to draw the lines in pixels.
1-3 is ideal depending on distance
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m
- $multi_text_color
- in file securimage.php, variable Securimage::$multi_text_color
String of HTML hex colors to use.
Separate each possible color with commas.
Be sure to precede each value with the # sign.
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s
- Securimage
- in file securimage.php, method Securimage::Securimage()
Class constructor.
Because the class uses sessions, this will attempt to start a session if there is no previous one.
If you do not start a session before calling the class, the constructor must be called before any output is sent to the browser.
- Securimage
- in file securimage.php, class Securimage
Securimage CAPTCHA Class.
- securimage.php
- procedural page securimage.php
- show
- in file securimage.php, method Securimage::show()
Generate a code and output the image to the browser.
- SI_IMAGE_GIF
- in file securimage.php, constant SI_IMAGE_GIF
Output images in GIF format
- SI_IMAGE_JPEG
- in file securimage.php, constant SI_IMAGE_JPEG
Output images in JPEG format
- SI_IMAGE_PNG
- in file securimage.php, constant SI_IMAGE_PNG
Output images in PNG format
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t
- $text_angle_maximum
- in file securimage.php, variable Securimage::$text_angle_maximum
The minimum angle in degrees, with 0 degrees being left-to-right reading text.
Higher values represent a counter-clockwise rotation.
For example, a value of 90 would result in bottom-to-top reading text.
- $text_angle_minimum
- in file securimage.php, variable Securimage::$text_angle_minimum
The minimum angle in degrees, with 0 degrees being left-to-right reading text.
Higher values represent a counter-clockwise rotation.
For example, a value of 90 would result in bottom-to-top reading text.
- $text_color
- in file securimage.php, variable Securimage::$text_color
The text color to use for drawing characters.
- $text_maximum_distance
- in file securimage.php, variable Securimage::$text_maximum_distance
Letters can be spaced apart at random distances.
- $text_minimum_distance
- in file securimage.php, variable Securimage::$text_minimum_distance
Letters can be spaced apart at random distances.
- $text_transparency_percentage
- in file securimage.php, variable Securimage::$text_transparency_percentage
The percentage of transparency, 0 to 100.
A value of 0 is completely opaque, 100 is completely transparent (invisble)
- $text_x_start
- in file securimage.php, variable Securimage::$text_x_start
The X-Position on the image where letter drawing will begin.
This value is in pixels from the left side of the image.
- $ttf_file
- in file securimage.php, variable Securimage::$ttf_file
The path to the TTF font file to load.
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- $use_gd_font
- in file securimage.php, variable Securimage::$use_gd_font
Whether to use a GD font instead of a TTF font.
TTF offers more support and options, but use this if your PHP doesn't support TTF.
- $use_multi_text
- in file securimage.php, variable Securimage::$use_multi_text
Set to true to use multiple colors for each character.
- $use_transparent_text
- in file securimage.php, variable Securimage::$use_transparent_text
Set to true to make the characters appear transparent.
- $use_wordlist
- in file securimage.php, variable Securimage::$use_wordlist
True to use a word list file instead of a random code
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