use html localStorage in PHP -
my main question is, why below code prints out:
false boolean value true i expect variable "boolean" value false
i want store data in javascript , later use in php, possible?
<!doctype html> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> <title>storage test?</title> </head> <body> <script type='text/javascript'> localstorage.save = 'false'; </script> <?php $boolean = "<script type='text/javascript'>" . "document.write(localstorage.save);". "</script>"; echo $boolean; if($boolean = 'true'){ echo "<p>boolean value true</p>"; } else { echo "<p>boolean value false</p>"; } ?> </body>
like said, you're not comparing, assigning because of single equal sing = in if statement.
next cannot directly read localstorage php. if had double equals == compare, still outout boolean value true.
that because put string inside $boolean:
$boolean = "<script type='text/javascript'>document.write(localstorage.save);</script?"; you're not evaluating javascript code that.
when php variable contains something, wether string or number etc. evaluate true inside if statement. unless value either false, 0 or null.
to compare real boolean value have use explicit compare. 3 equal signs ===.
if ( $somebool === true ) { // stuff } but no, cannot directly localstorage value js php. you'd need ajax call pass php. , think you're trying do.
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