问题
here is code which creats animated text using imagemagick..
$label=$_POST["label"];
$cmd = " -background transparent -font $font -pointsize $size label:$label -stroke black -strokewidth 2 ".
" \( -clone 0 -tile \"" . $image . "[0]\" -stroke black -strokewidth 2 -gravity center -annotate +0+0 $label \) ".
the above code wokrs fine when i enter "1234" in label field ... but it doe not when i type"12 34" it displays only "12" it is not taking "space" in between charcter ...something needs to be done for "label" variable.. not sure how to fix this.. please help me to resolve this...
回答1:
Put the entire string in double quotes since spaces are not allowed in command line. In the following i enclosed both usages of $label in double-quotes using the \" escape sequence:
$label=$_POST["label"];
$cmd = " -background transparent -font $font -pointsize $size label:\"$label\" -stroke black -strokewidth 2 ".
" \( -clone 0 -tile \"" . $image . "[0]\" -stroke black -strokewidth 2 -gravity center -annotate +0+0 \"$label\" \) ".
回答2:
Use apostrophes, like in example "Labels over Multiple Lines" at http://www.imagemagick.org/Usage/text/#label
$cmd = " -background transparent -font $font -pointsize $size label:'$label' -stroke black -strokewidth 2 ".
回答3:
My post is editted. See what hakre posted, it's a better answer than mine was.
string escapeshellarg ( string $arg )
Should do the trick, plus it allows you to pass a string directly to the shell function treated as a single safe argument
来源：https://stackoverflow.com/questions/8756110/imagemagick-creating-thumbnail