تمرین های PHP - مرحله easy - دست نوشته‌های امیر

تمرین های PHP – مرحله easy

بخش چالش های سایت edabit.com شامل تمرین های برنامه نویسی به زبان پایتون، پی اچ پی، جاوا، جاوااسکریپت، روبی و … را در درجه سختی های مختلف دارد.

فهرست مراحل حل شده:

تمرین های PHP – مرحله easy

در این بخش تمرین های برنامه نویسی پی اچ پی با درجه سختی easy حل شد؛ البته نه همه ی تمرین ها چون تعداد زیادی تمرین موجود هست ولی تمرین های صفحه ی اول حل شد دلیل این موضوع هم ضبط ویدیو بود که نمیخواستم زمان زیادی داشته باشه.

احتمالا کمی مشکل صدا هست که سعی می کنم از ویدیوهای بعدی بهتر پیش برم.

لیست سوالات حل شده:

https://edabit.com/challenge/6cy4ZoxMggJNCBjEa

https://edabit.com/challenge/4uEox3w945f8skbwN

https://edabit.com/challenge/uXkJxdBwE3AA7ww8w

https://edabit.com/challenge/CHvqoJec87KcpXzm6

https://edabit.com/challenge/fRwYWypcJv2Wh2wuS

https://edabit.com/challenge/YzEBRZsefZpWdgvPv

https://edabit.com/challenge/6KoodWTcxo87SFpv6

https://edabit.com/challenge/WGGbqecYMAEAkuTwR

https://edabit.com/challenge/3iiu7oo5EgNrYuXKn

https://edabit.com/challenge/mhHNdTvC2WSrPHqRh

https://edabit.com/challenge/pmbYjCjmbRiJMg2Gk

ویدیوی حل سوالات:

اگر در دیدن ویدیو مشکل دارید با کلیک روی این لینک از آپارات ویدیو رو ببنید.

پیشنهاد نویسنده: اگر نیاز به نرم افزار ویرایش ویدیو دارید این لینک را بخوانید.

کد حل سوالات:

<?php


function largestSwap($number) {

	if($number < 10 || $number > 99)
		return;

	$string = str_split($number);

	$newNumber = $string[1] . $string[0];

	if($number >= $newNumber)
		return "true";
	else
		return "false";
}

echo "largestSwap(27) : " . largestSwap(27) . "<br />";
echo "largestSwap(43) : " . largestSwap(43) . "<br />";
echo "largestSwap(14) : " . largestSwap(14) . "<br />";
echo "largestSwap(53) : " . largestSwap(53) . "<br />";
echo "largestSwap(99) : " . largestSwap(99) . "<br />";



function capMe($arr) {

	$output = array();
	$counter = 0;
	foreach ($arr as $key => $value) {
		$temp1 = str_split($value);
		$temp2 = strtoupper($temp1[0]);

		for($i = 1; $i < strlen($value); $i++)
			$temp2[$i] = strtolower($temp1[$i]);

		$output[$counter] = json_encode($temp2);
		$counter++;
	}

	return $output;

}

print_r(capMe(["mavis", "senaida", "letty"]));
echo "<br /><br />";
print_r(capMe(["samuel", "MABELLE", "letitia", "meridith"]));
echo "<br /><br />";
print_r(capMe(["Slyvia", "Kristal", "Sharilyn", "Calista"]));
echo "<br /><br />";


function highLow($numberString) {
	$numbers = explode(" ", $numberString);

	$min = $numbers[0];
	$max = $numbers[0];

	for ($i=1; $i < count($numbers); $i++) { 
		if($numbers[$i] > $max)
			$max = $numbers[$i];
		elseif ($numbers[$i] < $min)
			$min = $numbers[$i];
	}

	return $max . " " . $min;
}

echo 'highLow("1 2 3 4 5") : ' . highLow("1 2 3 4 5") . "<br />";
echo 'highLow("1 2 -3 4 5") : ' . highLow("1 2 -3 4 5") . "<br />";
echo 'highLow("1 9 3 4 -5") : ' . highLow("1 9 3 4 -5") . "<br />";
echo 'highLow("13") : ' . highLow("13") . "<br />";

function sortNumsAscending($arr) {

	if(is_null($arr))
		return [];

	$tempArr = $arr;
	$count = count($arr);

	for ($i=0; $i < $count ; $i++) {
		for ($j=$i; $j < $count; $j++) { 

			if($tempArr[$i] > $tempArr[$j]) {
				$temp = $tempArr[$i];
				$tempArr[$i] = $tempArr[$j];
				$tempArr[$j] = $temp;
			}
		}
	}

	return $tempArr;

}



print_r(sortNumsAscending([1, 2, 10, 50, 5]));
echo "<br /><br />";
print_r(sortNumsAscending([80, 29, 4, -95, -24, 85]));
echo "<br /><br />";
print_r(sortNumsAscending(null));
echo "<br /><br />";
print_r(sortNumsAscending([]));
echo "<br /><br />";


function factorial($number) {
	$sum = 1;
	for ($i=1; $i <= $number; $i++) { 
		$sum *= $i;
	}
	return $sum;
}

echo "factorial(3) : " . factorial(3) . "<br />";
echo "factorial(5) : " . factorial(5) . "<br />";
echo "factorial(13) : " . factorial(13) . "<br />";


function evenOddPartition($arr) {

	$output = array();
	$output[0] = array();
	$output[1] = array();
	$oddcounter = 0;
	$evencounter = 0;

	$count = count($arr);
	for ($i=0; $i < $count; $i++) { 
		if($arr[$i] == 0 || $arr[$i] % 2 == 0) {
			$output[0][$evencounter] = $arr[$i];
			$evencounter++;
		}
		else {
			$output[1][$oddcounter] = $arr[$i];
			$oddcounter++;
		}
	}

	return $output;

}

echo "<pre />";
print_r(evenOddPartition([5, 8, 9, 2, 0]));
echo "<br /><br />";
print_r(evenOddPartition([1, 0, 1, 0, 1, 0]));
echo "<br /><br />";
print_r(evenOddPartition([1, 3, 5, 7, 9]));
echo "<br /><br />";
print_r(evenOddPartition([]));
echo "<br /><br />";


function hasSpaces($string) {

	$temp = str_split($string);

	for ($i=0; $i < strlen($string); $i++)
		if($temp[$i] === " ")
			return "true";

	return "false";

}

echo 'hasSpaces("hello") : ' . hasSpaces("hello") . "<br/>";
echo 'hasSpaces("hello, world") : ' . hasSpaces("hello, world") . "<br/>";
echo 'hasSpaces(" ") : ' . hasSpaces(" ") . "<br/>";
echo 'hasSpaces("") : ' . hasSpaces("") . "<br/>";
echo 'hasSpaces(",./!@#") : ' . hasSpaces(",./!@#") . "<br/>";


function missingNum($numbers) {

	$sorted = sortNumsAscending($numbers);

	for ($i=0; $i < count($numbers); $i++)
		if($i + 1 != $sorted[$i])
			return $i + 1;

	return 10;


}

echo "missingNum([1, 2, 3, 4, 6, 7, 8, 9, 10]) : " . missingNum([1, 2, 3, 4, 6, 7, 8, 9, 10]).	"<br />";
echo "missingNum([7, 2, 3, 6, 5, 9, 1, 4, 8]) : " . missingNum([7, 2, 3, 6, 5, 9, 1, 4, 8]).	"<br />";
echo "missingNum([10, 5, 1, 2, 4, 6, 8, 3, 9]) : " . missingNum([10, 5, 1, 2, 4, 6, 8, 3, 9]).	"<br />";


function doubleChar($string) {

	$output = "";
	$temp = str_split($string);
	for ($i=0; $i < strlen($string); $i++)
		$output .= $temp[$i] . $temp[$i];

	return $output;
}

echo 'doubleChar("String") : ' . doubleChar("String") . "<br />";
echo 'doubleChar("Hello World!") : ' . doubleChar("Hello World!") . "<br />";
echo 'doubleChar("1234!_ ") : ' . doubleChar("1234!_ ") . "<br />";


function societyName($arr) {

	$output = "";

	foreach ($arr as $key => $value) {
		$temp = str_split($value);
		$output .= $temp[0];
	}

	return $output;

}

echo 'societyName(["Adam", "Sarah", "Malcolm"]) : ' . societyName(["Adam", "Sarah", "Malcolm"]) . "<br /><br />";
echo 'societyName(["Harry", "Newt", "Luna", "Cho"]) : ' . societyName(["Harry", "Newt", "Luna", "Cho"]) . "<br /><br />";
echo 'societyName(["Phoebe", "Chandler", "Rachel", "Ross", "Monica", "Joey"]) : ' . societyName(["Phoebe", "Chandler", "Rachel", "Ross", "Monica", "Joey"]) . "<br /><br />";


function removeDups($arr) {

	$output = array();
	$unique = true;
	$counter = 0;

	for ($i=0; $i < count($arr); $i++) {
		$unique = true;
		for ($j=0; $j < $i; $j++) {
			if($i == $j)
				continue;
			if($arr[$i] === $arr[$j])
				$unique = false;
		}

		if($unique) {
			$output[$counter] = $arr[$i];
			$counter++;
		}

	}

	return $output;
}

print_r(removeDups([1, 0, 1, 0]));
echo "<br /><br />";
print_r(removeDups(["The", "big", "cat"]));
echo "<br /><br />";
print_r(removeDups(["John", "Taylor", "John"]));
echo "<br /><br />";

?>

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<?php

function largestSwap($number) {

if($number < 10 || $number > 99)

return;

$string = str_split($number);

$newNumber = $string[1] . $string[0];

if($number >= $newNumber)

return "true";

else

return "false";

}

echo "largestSwap(27) : " . largestSwap(27) . " ";

echo "largestSwap(43) : " . largestSwap(43) . " ";

echo "largestSwap(14) : " . largestSwap(14) . " ";

echo "largestSwap(53) : " . largestSwap(53) . " ";

echo "largestSwap(99) : " . largestSwap(99) . " ";

function capMe($arr) {

$output = array();

$counter = 0;

foreach ($arr as $key => $value) {

$temp1 = str_split($value);

$temp2 = strtoupper($temp1[0]);

for($i = 1; $i < strlen($value); $i++)

$temp2[$i] = strtolower($temp1[$i]);

$output[$counter] = json_encode($temp2);

$counter++;

}

return $output;

}

print_r(capMe(["mavis", "senaida", "letty"]));

echo " ";

print_r(capMe(["samuel", "MABELLE", "letitia", "meridith"]));

echo " ";

print_r(capMe(["Slyvia", "Kristal", "Sharilyn", "Calista"]));

echo " ";

function highLow($numberString) {

$numbers = explode(" ", $numberString);

$min = $numbers[0];

$max = $numbers[0];

for ($i=1; $i < count($numbers); $i++) {

if($numbers[$i] > $max)

$max = $numbers[$i];

elseif ($numbers[$i] < $min)

$min = $numbers[$i];

}

return $max . " " . $min;

}

echo 'highLow("1 2 3 4 5") : ' . highLow("1 2 3 4 5") . " ";

echo 'highLow("1 2 -3 4 5") : ' . highLow("1 2 -3 4 5") . " ";

echo 'highLow("1 9 3 4 -5") : ' . highLow("1 9 3 4 -5") . " ";

echo 'highLow("13") : ' . highLow("13") . " ";

function sortNumsAscending($arr) {

if(is_null($arr))

return [];

$tempArr = $arr;

$count = count($arr);

for ($i=0; $i < $count ; $i++) {

for ($j=$i; $j < $count; $j++) {

if($tempArr[$i] > $tempArr[$j]) {

$temp = $tempArr[$i];

$tempArr[$i] = $tempArr[$j];

$tempArr[$j] = $temp;

}

return $tempArr;

}

print_r(sortNumsAscending([1, 2, 10, 50, 5]));

echo " ";

print_r(sortNumsAscending([80, 29, 4, -95, -24, 85]));

echo " ";

print_r(sortNumsAscending(null));

echo " ";

print_r(sortNumsAscending([]));

echo " ";

function factorial($number) {

$sum = 1;

for ($i=1; $i <= $number; $i++) {

$sum *= $i;

}

return $sum;

}

echo "factorial(3) : " . factorial(3) . " ";

echo "factorial(5) : " . factorial(5) . " ";

echo "factorial(13) : " . factorial(13) . " ";

function evenOddPartition($arr) {

$output = array();

$output[0] = array();

$output[1] = array();

$oddcounter = 0;

$evencounter = 0;

$count = count($arr);

for ($i=0; $i < $count; $i++) {

if($arr[$i] == 0 || $arr[$i] % 2 == 0) {

$output[0][$evencounter] = $arr[$i];

$evencounter++;

}

else {

$output[1][$oddcounter] = $arr[$i];

$oddcounter++;

}

return $output;

}

echo "<pre />";

print_r(evenOddPartition([5, 8, 9, 2, 0]));

echo " ";

print_r(evenOddPartition([1, 0, 1, 0, 1, 0]));

echo " ";

print_r(evenOddPartition([1, 3, 5, 7, 9]));

echo " ";

print_r(evenOddPartition([]));

echo " ";

function hasSpaces($string) {

$temp = str_split($string);

for ($i=0; $i < strlen($string); $i++)

if($temp[$i] === " ")

return "true";

return "false";

}

echo 'hasSpaces("hello") : ' . hasSpaces("hello") . " ";

echo 'hasSpaces("hello, world") : ' . hasSpaces("hello, world") . " ";

echo 'hasSpaces(" ") : ' . hasSpaces(" ") . " ";

echo 'hasSpaces("") : ' . hasSpaces("") . " ";

echo 'hasSpaces(",./!@#") : ' . hasSpaces(",./!@#") . " ";

function missingNum($numbers) {

$sorted = sortNumsAscending($numbers);

for ($i=0; $i < count($numbers); $i++)

if($i + 1 != $sorted[$i])

return $i + 1;

return 10;

}

echo "missingNum([1, 2, 3, 4, 6, 7, 8, 9, 10]) : " . missingNum([1, 2, 3, 4, 6, 7, 8, 9, 10]). " ";

echo "missingNum([7, 2, 3, 6, 5, 9, 1, 4, 8]) : " . missingNum([7, 2, 3, 6, 5, 9, 1, 4, 8]). " ";

echo "missingNum([10, 5, 1, 2, 4, 6, 8, 3, 9]) : " . missingNum([10, 5, 1, 2, 4, 6, 8, 3, 9]). " ";

function doubleChar($string) {

$output = "";

$temp = str_split($string);

for ($i=0; $i < strlen($string); $i++)

$output .= $temp[$i] . $temp[$i];

return $output;

}

echo 'doubleChar("String") : ' . doubleChar("String") . " ";

echo 'doubleChar("Hello World!") : ' . doubleChar("Hello World!") . " ";

echo 'doubleChar("1234!_ ") : ' . doubleChar("1234!_ ") . " ";

function societyName($arr) {

$output = "";

foreach ($arr as $key => $value) {

$temp = str_split($value);

$output .= $temp[0];

}

return $output;

}

echo 'societyName(["Adam", "Sarah", "Malcolm"]) : ' . societyName(["Adam", "Sarah", "Malcolm"]) . " ";

echo 'societyName(["Harry", "Newt", "Luna", "Cho"]) : ' . societyName(["Harry", "Newt", "Luna", "Cho"]) . " ";

echo 'societyName(["Phoebe", "Chandler", "Rachel", "Ross", "Monica", "Joey"]) : ' . societyName(["Phoebe", "Chandler", "Rachel", "Ross", "Monica", "Joey"]) . " ";

function removeDups($arr) {

$output = array();

$unique = true;

$counter = 0;

for ($i=0; $i < count($arr); $i++) {

$unique = true;

for ($j=0; $j < $i; $j++) {

if($i == $j)

continue;

if($arr[$i] === $arr[$j])

$unique = false;

}

if($unique) {

$output[$counter] = $arr[$i];

$counter++;

}

return $output;

}

print_r(removeDups([1, 0, 1, 0]));

echo " ";

print_r(removeDups(["The", "big", "cat"]));

echo " ";

print_r(removeDups(["John", "Taylor", "John"]));

echo " ";

کد سوالات در را در گیت هاب ببینید.

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