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What does '
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It's a shorthand for <?php echo $a; ?>.
It's enabled by default since 5.4 regardless of php.ini settings.
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What is the difference between single-quoted and double-quoted strings in PHP?
I'm a little confused why I see some code in PHP with string placed in single quotes and sometimes in double quotes.
12 Ans...
Are unused CSS images downloaded?
...e="text/css">
.nonexistent {
background: url('index.php?foo');
}
</style>
</head>
<body>
<?php if(isset($_GET['foo'])) {
file_put_contents('test.txt', $_SERVER['HTTP_USER_AGENT']);
} ?>
</body>
</html>
If te...
phpmyadmin logs out after 1440 secs
In my local development Ubuntu box I use MySQL and phpmyadmin to work with the database.
24 Answers
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Email validation using jQuery
...how();
return false;
}
//ajax call php page
$.post("send.php", $("#contactform").serialize(), function(response) {
$('#contactform').fadeOut('slow',function(){
$('#success').html(response);
$('#success')...
Multiple Updates in MySQL
...ice for dynamic updating too. For example, I used that solution in loop in php: $commandTxt = 'UPDATE operations SET chunk_finished = CASE id '; foreach ($blockOperationChecked as $operationID => $operationChecked) $commandTxt .= " WHEN $operationID THEN $ope...
How do I see the extensions loaded by PHP?
It's got to be somewhere in the phpinfo() dump, but I just don't know where. Is it supposed to be under the "Additional Modules" section? Somewhere else? I'm trying to figure out why some extensions don't appear to be loaded, but I don't even know where I should be looking.
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php：获取数组第一个值 - 更多技术 - 清泛网 - 专注C/C++及内核技术
php：获取数组第一个值自PHP 5.4版本后可以使用[ ]来取数据指定位置的元素，索引从0开始，即$arr[0]取数组第一个值。不过为了兼容性，建议还是采取reset(),current(),next()等函数来取数组中的值，reset($arr)后current($arr)取第一个值。自...
LINUX下用PHPIZE安装PHP GD扩展 - PHP - 清泛IT论坛，有思想、有深度
...zqp2013 于 2015-4-26 14:39 编辑
环境：LNMP in centOS 6.4。linux下PHP的扩展可以用phpize的方法，比较简单地进行启用。以下以PHP-GD2 库安装为例子。sudo yum install php-gd2 png jpeg freetype //YUM安装扩展cd /app/php-5.4.13/ext/gd &nbs...
How to display Base64 images in HTML?
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If you have PHP on the back-end, you can use this code:
$image = 'http://images.itracki.com/2011/06/favicon.png';
// Read image path, convert to base64 encoding
$imageData = base64_encode(file_get_contents($image));
// Format the image...