You must start with double quotes to get expanded variables, then escape nested ones with backslash
<?php echo form_radio($data['filename'], 0, '', "class="uniform" id="$data[ids]"");Or use single quotes inside double
<?php echo form_radio($data['filename'], 0, '', "class='uniform' id='$data[ids]'");Notice you don't need to quote single dimensional array indexes inside the square braces if inside double quotes
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We can write php extension is many way... .php , .php5, .php4
When processing PHP scripts, web servers most frequently use the.php extension by default. This implies that a web server will recognize and run PHP code when it comes across a file with the.php extension.
The eval() function evaluates a string as PHP code. http://us.php.net/manual/en/function.eval.php
Without any function is impossible. So I'll assume you mean any coded function, in which case the predefined function below is your answer.$string = strrev($string);
A predefined function can reverse a string as shown below:echo strrev('pizza'); // outputs: azzip
It is fairly simple to check the length of a string in PHP. All you need to do is use the function strlen(). Below is an example of how it is used. <?php $my_text = "Hello"; echo strlen($my_text); // outputs 5 ?>
Not possible through html. Use php strrev function. For eg:
To count the number of left and right nodes in a binary tree using PHP Codeigniter, you would typically need to traverse the tree recursively. You can create a function that takes the root node of the binary tree as a parameter and recursively counts the left and right nodes. Within the function, you would check if the current node has a left child and recursively call the function on the left child while incrementing the left count. Similarly, you would do the same for the right child. Finally, you would return the counts of left and right nodes.
this is not really a question... But I think you are asking why php functions inside a HTML button do not work. Well probably because php is rendered serverside and is passed to a user-browser afterwards.... it is possible to use php inside onclick... but only to display specific content (javascript function for instance)... it is not possible to let a user decide to run a specific php function by clicking a button.
You can define a constant using the define() directive.you can use this a number of ways;to define a variable to a constant do:$string = "hello";define("string",$string);to define a string to a constant use:define("hello","there");to define a integer or other numerical value use:define("number",1.0);Summery:to define a string use quotes as you would do a string.Unlike variables in PHP a constant cannot be changed or undefined once it is defined. Constant remains automatically globally throughout the script. It means that it can be accessed from inside a function. e.g.
<?php trim(ereg_replace( ' +', ' ', $extraWhiteSpace)); ?>
Varchar in SQL means string in PHP.
If a string features a separator (e.g. a dot or a comma), use PHP's explode() function to get an array with the two parts: $string = "hello,joe" $array = explode(",", $string); $array[0] will be "hello" $array[1] will be "joe" If not, you may use substr() to return a certain length of a string
If you will see this example as below, this may help. <?php $string = mysql_real_escape_string($string); $sql = "insert into stringtable(mystring) values('$string')"; ?>