Application scenario: When making modification operations, make the check box selected.
<span>//</span><span>字段存的是id值,如 7,8,9 这些id值是需要被选中的</span><span>$checkId</span> = '7,8,9'<span>; 被循环的id值 </span><span>$idAll</span> = <span>array</span>('1','2','3','5','7','8','9'<span>); // ',7,8,9,' ',1,' </span><span>foreach</span>(<span>$idAll</span><span>as</span><span>$k</span>=><span>$v</span><span>){ </span><span>if</span>(<span>strpos</span>(','.<span>$checked</span>.',', ' , '.<span>$v</span>.','<span>) !== FALSE){ </span><span>$check</span> = 'checked="checked"'<span>; }</span><span>else</span><span>{ </span><span>$check</span> = ''<span>; } }</span>
The above introduces how to judge a character in another string, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.