পিএইচপি বেসিক কোর্স ​

<?php
$number = 9;
$str = "Beijing";
$format = 'There are %d million bicycles in %s.';
printf($format, $number, $str);

<?php
$number = 9;
$str = "Beijing";
$format = 'There are %d million bicycles in %s.';
printf($format, $number, $str);

<?php
$n =  43951789;
$u = -43951789;
$c = 65; // ASCII 65 is 'A'

// notice the double %%, this prints a literal '%' character
printf("%%b = '%b'\n", $n); // binary representation
printf("%%c = '%c'\n", $c); // print the ascii character, same as chr() function
printf("%%d = '%d'\n", $n); // standard integer representation
printf("%%e = '%e'\n", $n); // scientific notation
printf("%%u = '%u'\n", $n); // unsigned integer representation of a positive integer
printf("%%u = '%u'\n", $u); // unsigned integer representation of a negative integer
printf("%%f = '%f'\n", $n); // floating point representation
printf("%%o = '%o'\n", $n); // octal representation
printf("%%s = '%s'\n", $n); // string representation
printf("%%x = '%x'\n", $n); // hexadecimal representation (lower-case)
printf("%%X = '%X'\n", $n); // hexadecimal representation (upper-case)

printf("%%+d = '%+d'\n", $n); // sign specifier on a positive integer
printf("%%+d = '%+d'\n", $u); // sign specifier on a negative integer

<?php
$n =  43951789;
$u = -43951789;
$c = 65; // ASCII 65 is 'A'

// notice the double %%, this prints a literal '%' character
printf("%%b = '%b'\n", $n); // binary representation
printf("%%c = '%c'\n", $c); // print the ascii character, same as chr() function
printf("%%d = '%d'\n", $n); // standard integer representation
printf("%%e = '%e'\n", $n); // scientific notation
printf("%%u = '%u'\n", $n); // unsigned integer representation of a positive integer
printf("%%u = '%u'\n", $u); // unsigned integer representation of a negative integer
printf("%%f = '%f'\n", $n); // floating point representation
printf("%%o = '%o'\n", $n); // octal representation
printf("%%s = '%s'\n", $n); // string representation
printf("%%x = '%x'\n", $n); // hexadecimal representation (lower-case)
printf("%%X = '%X'\n", $n); // hexadecimal representation (upper-case)

printf("%%+d = '%+d'\n", $n); // sign specifier on a positive integer
printf("%%+d = '%+d'\n", $u); // sign specifier on a negative integer

<?php
$firstName = "Polash";
$lastName = "Mahmud";

printf('My name is %2$s %1$s', $firstName, $lastName);

<?php
$firstName = "Polash";
$lastName = "Mahmud";

printf('My name is %2$s %1$s', $firstName, $lastName);

<?php
$number = 9;
$str = "Beijing";
$format = 'There are %2$d million bicycles in %1$s.';
echo sprintf($format, $str, $number);

<?php
$number = 9;
$str = "Beijing";
$format = 'There are %2$d million bicycles in %1$s.';
echo sprintf($format, $str, $number);

if (condition) {
  code to be executed if condition is true;
}

if (condition) {
  code to be executed if condition is true;
}

<?php
$a = 30;
$b = 20;

if ($a > $b) {
  echo "a is greater than b";
}

<?php
$a = 30;
$b = 20;

if ($a > $b) {
  echo "a is greater than b";
}

if (condition) {
  code to be executed if condition is true;
} else {
  code to be executed if condition is false;
}

if (condition) {
  code to be executed if condition is true;
} else {
  code to be executed if condition is false;
}

<?php
$a = 10;
$b = 20;

if ($a > $b) {
  echo "a is greater than b";
} else {
  echo "a is NOT greater than b";
}

<?php
$a = 10;
$b = 20;

if ($a > $b) {
  echo "a is greater than b";
} else {
  echo "a is NOT greater than b";
}

if (condition) {
  code to be executed if condition is true;
} elseif (condition) {
  code to be executed if condition is false and elseif condition is true;
} else {
  code to be executed if and elseif both condition is false;
}

if (condition) {
  code to be executed if condition is true;
} elseif (condition) {
  code to be executed if condition is false and elseif condition is true;
} else {
  code to be executed if and elseif both condition is false;
}

<?php
$a = 10;
$b = 20;

if ($a > $b) {
  echo "a is greater than b";
} elseif ($a == $b) {
  echo "a is equal to b";
} else {
  echo "a is NOT greater than b and a is NOT equal to b";
}

<?php
$a = 10;
$b = 20;

if ($a > $b) {
  echo "a is greater than b";
} elseif ($a == $b) {
  echo "a is equal to b";
} else {
  echo "a is NOT greater than b and a is NOT equal to b";
}

<?php
$a = 10;
$b = 20;

if ($a > $b):
  echo "a is greater than b";
elseif ($a == $b):
    echo "a is equal to b";
else:
    echo "a is NOT greater than b and a is NOT equal to b";
endif;

<?php
$a = 10;
$b = 20;

if ($a > $b):
  echo "a is greater than b";
elseif ($a == $b):
    echo "a is equal to b";
else:
    echo "a is NOT greater than b and a is NOT equal to b";
endif;

<?php $a = 5; ?>
<?php if ($a == 5): ?>
A is equal to 5
<?php endif; ?>

<?php $a = 5; ?>
<?php if ($a == 5): ?>
A is equal to 5
<?php endif; ?>

<?php
$a = 10;
if ($a == 5):
    echo "a equals 5";
    echo "...";
elseif ($a == 6):
    echo "a equals 6";
    echo "!!!";
else:
    echo "a is neither 5 nor 6";
endif;

<?php
$a = 10;
if ($a == 5):
    echo "a equals 5";
    echo "...";
elseif ($a == 6):
    echo "a equals 6";
    echo "!!!";
else:
    echo "a is neither 5 nor 6";
endif;

(condition) ? code to be executed if condition is true : code to be executed if condition is false;

(condition) ? code to be executed if condition is true : code to be executed if condition is false;

<?php
$a = 10;
$b = 20;

echo ($a > $b) ? "a is greater than b" : "a is NOT greater than b";

<?php
$a = 10;
$b = 20;

echo ($a > $b) ? "a is greater than b" : "a is NOT greater than b";

switch (n) {
  case label1:
    code to be executed if n=label1;
    break;
  case label2:
    code to be executed if n=label2;
    break;
  case label3:
    code to be executed if n=label3;
    break;
    ...
  default:
    code to be executed if n is different from all labels;
}

switch (n) {
  case label1:
    code to be executed if n=label1;
    break;
  case label2:
    code to be executed if n=label2;
    break;
  case label3:
    code to be executed if n=label3;
    break;
    ...
  default:
    code to be executed if n is different from all labels;
}

<?php
$favcolor = "red";

switch ($favcolor) {
  case "red":
    echo "Your favorite color is red!";
    break;
  case "blue":
    echo "Your favorite color is blue!";
    break;
  case "green":
    echo "Your favorite color is green!";
    break;
  default:
    echo "Your favorite color is neither red, blue, nor green!";
}

<?php
$favcolor = "red";

switch ($favcolor) {
  case "red":
    echo "Your favorite color is red!";
    break;
  case "blue":
    echo "Your favorite color is blue!";
    break;
  case "green":
    echo "Your favorite color is green!";
    break;
  default:
    echo "Your favorite color is neither red, blue, nor green!";
}

while (condition is true) {
  code to be executed;
}

while (condition is true) {
  code to be executed;
}

<?php
while (condition is true):
  code to be executed;
endwhile;

<?php
while (condition is true):
  code to be executed;
endwhile;

<?php
$x = 1;

while($x <= 5) {
  echo "The number is: $x" . PHP_EOL;
  $x++;
}

<?php
$x = 1;

while($x <= 5) {
  echo "The number is: $x" . PHP_EOL;
  $x++;
}

<?php
$x = 1;

while($x <= 5):
  echo "The number is: $x" . PHP_EOL;
  $x++;
endwhile;

<?php
$x = 1;

while($x <= 5):
  echo "The number is: $x" . PHP_EOL;
  $x++;
endwhile;

do {
  code to be executed;
} while (condition is true);

do {
  code to be executed;
} while (condition is true);

<?php
$x = 1;

do {
  echo "The number is: $x" . PHP_EOL;
  $x++;
} while ($x <= 5);

<?php
$x = 1;

do {
  echo "The number is: $x" . PHP_EOL;
  $x++;
} while ($x <= 5);

<?php
$i = 0;
do {
    echo $i;
} while ($i > 0);

<?php
$i = 0;
do {
    echo $i;
} while ($i > 0);

<?php
$i = 3;
do {
    if ($i < 5) {
        echo "i is not big enough";
        break;
    }
    $i *= $factor;
    if ($i < $minimum_limit) {
        break;
    }
   echo "i is ok";

    /* process i */

} while ($i > 0);

<?php
$i = 3;
do {
    if ($i < 5) {
        echo "i is not big enough";
        break;
    }
    $i *= $factor;
    if ($i < $minimum_limit) {
        break;
    }
   echo "i is ok";

    /* process i */

} while ($i > 0);

for (init counter; test counter; increment counter) {
  code to be executed for each iteration;
}

for (init counter; test counter; increment counter) {
  code to be executed for each iteration;
}

<?php
for ($x = 0; $x <= 5; $x++) {
  echo "The number is: $x" . PHP_EOL;
}

<?php
for ($x = 0; $x <= 5; $x++) {
  echo "The number is: $x" . PHP_EOL;
}

foreach ($array as $value) {
  code to be executed;
}

foreach ($array as $value) {
  code to be executed;
}

$colors = array("red", "green", "blue", "yellow");
$colors = ["red", "green", "blue", "yellow"];

$colors = array("red", "green", "blue", "yellow");
$colors = ["red", "green", "blue", "yellow"];

<?php
$colors = array("red", "green", "blue", "yellow");  

foreach ($colors as $value) {
  echo "$value" . PHP_EOL;
}

<?php
$colors = array("red", "green", "blue", "yellow");  

foreach ($colors as $value) {
  echo "$value" . PHP_EOL;
}

<?php
$arr = array("one", "two", "three");
foreach ($arr as $key => $value) {
    echo "Key: $key; Value: $value\n";
}

<?php
$arr = array("one", "two", "three");
foreach ($arr as $key => $value) {
    echo "Key: $key; Value: $value\n";
}

<?php
for ($i = 0; $i < 5; $i++) {
    if ($i == 3) {
        break; /* Loop is end */
    }
    echo $i . PHP_EOL;
}

<?php
for ($i = 0; $i < 5; $i++) {
    if ($i == 3) {
        break; /* Loop is end */
    }
    echo $i . PHP_EOL;
}

<?php
for ($i = 0; $i < 5; $i++) {
    if ($i == 3) {
        continue; /* Loop is continue */
    }
    echo $i . PHP_EOL;
}

<?php
for ($i = 0; $i < 5; $i++) {
    if ($i == 3) {
        continue; /* Loop is continue */
    }
    echo $i . PHP_EOL;
}

<?php
function sum($x, $y) {
    $z = $x + $y;
    return $z;
}

echo "5 + 10 = " . sum(5, 10) . PHP_EOL;
echo "7 + 13 = " . sum(7, 13) . PHP_EOL;
echo "2 + 4 = " . sum(2, 4);

<?php
function sum($x, $y) {
    $z = $x + $y;
    return $z;
}

echo "5 + 10 = " . sum(5, 10) . PHP_EOL;
echo "7 + 13 = " . sum(7, 13) . PHP_EOL;
echo "2 + 4 = " . sum(2, 4);

<?php
require 'header.php';
echo "Some text";
require 'footer.php';

<?php
require 'header.php';
echo "Some text";
require 'footer.php';

<?php
include 'header.php';
echo "Some text";
include 'footer.php';

<?php
include 'header.php';
echo "Some text";
include 'footer.php';

<?php
require_once 'header.php';
echo "Some text";
require_once 'footer.php';

<?php
require_once 'header.php';
echo "Some text";
require_once 'footer.php';

<?php
include_once 'header.php';
echo "Some text";
include_once 'footer.php';

<?php
include_once 'header.php';
echo "Some text";
include_once 'footer.php';