PHP Manual
HaruPage
Calculate the byte length of characters which can be included on one line of the specified width

HaruPage::measureText

(PECL haru >= 0.0.1)

HaruPage::measureText — Calculate the byte length of characters which can be included on one line of the specified width

说明

HaruPage::measureText ( string $text , float $width [, bool $wordwrap = FALSE ] ) : int

Get the byte length of characters which can be included on one line of the specified width.

参数

text: The text to measure.
width: The width of the line.
wordwrap: When this parameter is set to TRUE the function "emulates" word wrapping by stopping after the last full word (delimited by whitespace) that can fit on the line.

返回值

Returns the byte length of characters which can be included within the specified width. For single-byte encodings, this is equal to the number of characters. For multi-byte encodings, this is not necessarily the case.

错误／异常

发生错误时抛出 HaruException 异常。

参见

HaruFont::measureText() - Calculate the number of characters which can be included within the specified width

php set returns a representation that can be converted to json php cubrid mysql 兼容性函数 get the maximum length of the specified field php mcve 函数 returns array of strings which represents the keys that can be used for response parameters on this transaction php ncurses 函数 draw a vertical line at current position using an attributed character and max. n characters long php harufont calculate the number of characters which can be included within the specified width php harupage get the current line width php harupage draw a line from the current point to the specified point php harupage calculate the byte length of characters which can be included on one line of the specified width php harupage set line width for the page php mongocursor sets whether this query can be done on a secondary deprecated php mongodb bson decimal128 returns a representation that can be converted to json php mongodb bson symbol returns a representation that can be converted to json php mongodb bson undefined returns a representation that can be converted to json php recursiveregexiterator returns whether an iterator can be obtained for the current entry php solrquery returns the minimum counts for facet fields should be included in the response php solrquery returns the maximum word length above which words will be ignored php solrquery returns the minimum word length below which words will be ignored php solrquery returns the minimum document frequency to return in order to be included php splfileobject set maximum line length php swoole mmap map a file into memory and return the stream resource which can be used by php stream operations.