这是我的代码，但它不是动态的。我需要的是，如果数组值大于 10，它将自动创建新行。
<?php
$limit = 10;
$newline = explode(" ",$caption);
$count = count($newline); //count number of array values
$nlimit = strlen($newline[0]) + strlen($newline[1]);
if($limit >= $nlimit)
{
echo $newline[0] . " ",$newline[1];
}
else
{
echo $newline[0] . " ","<br>". $newline[1];
}
?>
$caption = "im trying to figure out how to create a new line whenever an array value reaches more than 10 characters";
$lineCharlimit = 10;
$captionWordsArray = explode( " " ,$caption );
$line = '';
foreach( $captionWordsArray as $index => $word )
{
if( strlen( $line .$word ) > $lineCharlimit )
{
echo $line ,'<br>';
$line = $word;
}
else
{
$line .= ( $line == '' ? '' : ' ' ) .$word;
}
}
echo $line;
将输出：
im trying
to figure
out how to
create a
new line
whenever an
array value
reaches
more than
10
characters
但是对于像下面这样的输出（除非它是最后一个单词，否则没有一行少于 10 个字符）：
im trying to
figure out how
to create a
new line whenever
an array value
reaches more
than 10 characters
修改代码如下：
$caption = "im trying to figure out how to create a new line whenever an array value reaches more than 10 characters";
$lineCharlimit = 10;
$captionWordsArray = explode( " " ,$caption );
$line = '';
foreach( $captionWordsArray as $index => $word )
{
$line .= ( $line == '' ? '' : ' ' ) .$word;
if( strlen( $line ) > $lineCharlimit )
{
echo $line ,'<br>';
$line = '';
}
}
echo $line;