如何修复SyntaxError:未终止字符串字面值时嵌入php在javascript

how to fix the SyntaxError: unterminated string literal when embed php in javascript?

var app_app = <?=$app_app?>;

i got the error:

SyntaxError: unterminated string literal
var app_app = '<br />

var app_app = "<?php echo $app_app; ?>";

注意:您必须回显php变量以将其定义为JavaScript，并将其括在引号中

添加"引号，并尝试:

var app_app = "<?=$app_app?>";