strpos() using to find the first occurrence of a string in another string. It return the position of the sub-string in a string.If the searched string will not exists in the searching string it return false.
$mystring = “PHP Developer”;
$find = “Developer”;
echo $result = strpos($mystring,$find);
OUTPUT: 4… Read more
mysql_connect() and mysql_pconnect() both are working for database connection but with little difference. In mysql_pconnect(), ‘p’ stands for persistance connection.
When we are using mysql_connect() function, every time it is opening and closing the database connection, depending on the request .
But in case of mysql_pconnect() function,
First, when connecting, … Read more
We have two functions to get the number of elements in an array ie count() and sizeof()
Syntax : count ($array) and sizeof($array)
$a[0] = 15;
$a[1] = 12;
$a[2] = 50;
$a[3] = 41;
$a[4] = 42;
echo $result = count($a);
OUTPUT: 4… Read more
str_split() function used to convert a string into array.
$str = “Hello”;
$arr = str_split($str);
print_r($arr);
OUTPUT : Array ( [0] =H [1] =e [2] =l [3] =l [4] =o )… Read more
array_slice() is used to extract a slice of an array. It returns the sequence of elements from the array as specified by the parameters.
$languageArray = array(“php”, “java”, “c++”, “pearl”, “python”);
$languages = array_slice($languageArray,0 ,2);
print_r($languages);
OUTPUT: Array ( [0] =php [1] =java )… Read more
1 : Instead of using SELECT * we should specify the columns name like SELECT column1,column2 which have use in our script.
2 : We should use indexing of tables for which we are writing queries.
3 : Try to use the LIMIT if we need only a specific number … Read more
We can get the browser properties in PHP by :
echo $_SERVER[‘HTTP_USER_AGENT’] . “\n\n”;
OR
$browser = get_browser(null, true);
print_r($browser);… Read more
$fileName = “file01.txt”;
//fopen() function is used to open a file in php
$file = fopen($fileName,”r”) or exit(“Unable to open the file!”) ;
While(!feof($file)) // feof()checks the end of file in php
{
echo fgets($file); // fgets() read a fileline by
We can change the time zones by using date_default_timezone_set() function
eg : date_default_timezone_set(‘America/Los_Angeles’);… Read more
We can destroy session by using session_destroy(); .