get_class_methods PHP Function

array get_class_methods ( mixed $class_name )

Gets the class methods' names

Gets the class methods names.


<?phpclass myclass {
    // constructor
    function myclass()
    {
        return(true);
    }

    // method 1
    function myfunc1()
    {
        return(true);
    }

    // method 2
    function myfunc2()
    {
        return(true);
    }
}$class_methods = get_class_methods('myclass');// or$class_methods = get_class_methods(new myclass());

foreach ($class_methods as $method_name) {
    echo "$method_name\n";
}?>

5.0.0 As of PHP 5, this function returns the name of the methods as they were declared (case-sensitive). In PHP 4 they were lowercased. 4.0.6 The ability of specifying the object itself has been added.

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mysql_fetch_field - Get column information from a result

object mysql_fetch_field ( resource $result [, int $field_offset = 0 ] )

Get column information from a result and return as an object

Returns an object containing field information. This function can be used to obtain information about fields in the provided query result.


<?php
$conn = mysql_connect('localhost', 'mysql_user', 'mysql_password');
if (!$conn) {
    die('Could not connect to mysql server: ' . mysql_error());
}mysql_select_db('database'); //setup of database$result = mysql_query('select * from table');
if (!$result) {
    die('MySql Error: ' . mysql_error());
}/* get column metadata */$i = 0;
while ($i < mysql_num_fields($result)) {
    echo "Information for column $i:<br />\n";
    $meta = mysql_fetch_field($result, $i);
    if (!$meta) {
        echo "No information available<br />\n";
    }
    echo "<pre>
blob:         $meta->blob
max_length:   $meta->max_length
multiple_key: $meta->multiple_key
name:         $meta->name
not_null:     $meta->not_null
numeric:      $meta->numeric
primary_key:  $meta->primary_key
table:        $meta->table
type:         $meta->type
unique_key:   $meta->unique_key
unsigned:     $meta->unsigned
zerofill:     $meta->zerofill
</pre>";
    $i++;
}mysql_free_result($result);?>

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PHP mktime() Function - Get Unix timestamp for a date

int mktime ([ int $hour = date("H") [, int $minute = date("i") [, int $second = date("s") [, int $month = date("n") [, int $day = date("j") [, int $year = date("Y") [, int $is_dst = -1 ]]]]]]] )

Get Unix timestamp for a date

Returns the Unix timestamp corresponding to the arguments given. This timestamp is a long integer containing the number of seconds between the Unix Epoch (January 1 1970 00:00:00 GMT) and the time specified.


<?php// Set the default timezone to use. Available as of PHP 5.1date_default_timezone_set('UTC');// Prints: July 1, 2000 is on a Saturdayecho "July 1, 2000 is on a " . date("l", mktime(0, 0, 0, 7, 1, 2000));// Prints something like: 2006-04-05T01:02:03+00:00echo date('c', mktime(1, 2, 3, 4, 5, 2006));?>

5.3.0 mktime() now throws E_DEPRECATED notice if the is_dst parameter is used. 5.1.0 The is_dst parameter became deprecated. Made the function return FALSE on error, instead of -1. Fixed the function to accept the year, month and day to be all passed as zero. 5.1.0 When called with no arguments, mktime() throws E_STRICT notice. Use the time() function instead. 5.1.0 Now issues the E_STRICT and E_NOTICE time zone errors.

Syntax

mktime(hour,minute,second,month,day,year,is_dst);

Parameter	Description
hour	Optional. Specifies the hour
minute	Optional. Specifies the minute
second	Optional. Specifies the second
month	Optional. Specifies the month
day	Optional. Specifies the day
year	Optional. Specifies the year
is_dst	Optional. Set this parameter to 1 if the time is during daylight savings time (DST), 0 if it is not, or -1 (the default) if it is unknown. If it's unknown, PHP tries to find out itself (which may cause unexpected results).

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Strtolower - Returns string with all alphabetic characters converted to lowercase

string strtolower ( string $str )

Make a string lowercase

Returns string with all alphabetic characters converted to lowercase.


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echo $str; // Prints mary had a little lamb and she loved it so?>

14.-Curso PHP-MySQL. Formatear, cortar y unir strings.

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PHP file_get_contents Function - Reads entire file into a string

string file_get_contents ( string $filename [, bool $use_include_path = false [, resource $context [, int $offset = -1 [, int $maxlen ]]]] )

Reads entire file into a string

This function is similar to file(), except that file_get_contents() returns the file in a string, starting at the specified offset up to maxlen bytes. On failure, file_get_contents() will return FALSE.


<?php
$homepage = file_get_contents('http://www.example.com/');
echo $homepage;?>

5.1.0 Added the offset and maxlen parameters. 5.0.0 Added context support.

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