Use preg_split() in PHP and split with hyphen. Let’s say the following is our input value with numbers and string separated with hyphen $values ="ABC-DEF IJKL-3553435-8990987876";We want the output to beArray ( [0] => ABC-DEF IJKL [1] => 3553435 [2] => 8990987876 )ExampleThe PHP code is as follows Live Demo OutputThis will produce the following output Array ( [0] => ABC-DEF IJKL [1] => 3553435 [2] => 8990987876 )

To round amounts, use round() in PHP. Let’s say the following are our input values −$amount=50.78; $quantity=45.5;Convert them to float like this $am=(float) round($amount, 4); $quant=(float) round($quantity, 4);ExampleThe PHP code is as follows Live Demo OutputThis will produce the following output50.78 45.5 The result is=2310.49

In PHP, use &$ in function parameter to pass reference parameters.ExampleThe PHP code is as follows Live Demo OutputThis will produce the following output The actual value is=900 The modified value is=1000

For this, use preg_match_all(). Let’s say the following is our string $values = 'javamysqlphpmongodbpythonspringhibernatephp';We want to split with specific values like java hibernate phpExampleThe PHP code is as follows  Live Demo OutputThis will produce the following outputArray ( [0] => Array ( [0] => java [1] => php [2] => hibernate [3] => php ) [1] => Array ( [0] => java [1] => php [2] => hibernate [3] => php ) )

For this, use preg_replace() in PHP. You need to also use Regular Expressions. Let’s say the following is our input −FirstName|John |LastName|Smith|SalaryProvided|2000|5000The expected output is as follows wherein we have replaced a specific character “|” with a whitespace. This character was placed between two numbers 2000 and 5000 −FirstName|John |LastName|Smith|SalaryProvided|2000 5000ExampleThe PHP code is as follows Live Demo OutputThis will produce the following output The result is= FirstName|John |LastName|Smith|SalaryProvided|2000 5000

For this, use clone along with set the property name to null.ExampleThe PHP code is as follows Live Demo OutputThis will produce the following outputobject(stdClass)#1 (2) { ["Name"]=> string(4) "John" ["Age"]=> int(20) } object(stdClass)#2 (2) { ["Name"]=> string(4) "John" ["Age"]=> int(20) } object(stdClass)#2 (2) { ["Name"]=> NULL ["Age"]=> NULL } object(stdClass)#1 (2) { ["Name"]=> NULL ["Age"]=> NULL }

For this, you can simply use for loop.ExampleThe PHP code is as follows Live Demo OutputThis will produce the following output10 20 30 40 50 60

For such conditional evaluation, use PHP if(), else if() and else.ExampleThe PHP code is as follows Live Demo OutputGAME IS IN BUY MODE

Let’s say the following is our array −$marks=[45,67,89,34,98,57,77,30];And we want the output like this with only selected values45 67 89 68 98 57 77 60Above, we multiplied marks less than 40 with 2, rest kept the entire array same.ExampleThe PHP code is as follows Live Demo OutputThis will produce the following outputThe Marks are as follows 45 67 89 68 98 57 77 60

Let’s say the following is our string with letters and numbers −$value ="1045632245555fghjklm67535454663443gfdjkbvc9890000006777743";We ant a specific value beginning from 989 i.e.−9890000006777743ExampleFor this, use substr() along with strpos(). Live Demo OutputThe actual value is=1045632245555fghjklm67535454663443gfdjkbvc9890000006777743 The filter value is=9890000006777743