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PHP
PHP Articles
Page 13 of 81
If elseif else or ternary operator to compare numbers PHP?
You can use any of them, but a more professional approach is using the ternary operator (?). Performance of both if-else and ternary operator is the same.Let’s say we have the following two variable values −$value1=10; $value2=0;We need to compare the above 2 variable values.Example This will produce the following outputOutputThe value is=550000
Read MorePHP How to add backslash inside array of strings?\\n
To add backslash inside array of strings, use json_encode().Let’s say the following is our array −$value = [ "ADD", "REMOVE","SELECT","MODIFY" ];We want the output with backslash inside array of strings i.e −"["ADD","REMOVE","SELECT","MODIFY"]"ExampleThe PHP code is as follows − OutputThis will produce the following output"["ADD","REMOVE","SELECT","MODIFY"]"
Read MoreHow do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?
The syntax is as follows −$anyVariableName=yourCondition ? if condition becomes true then this will be executed: if condition becomes false then this gets executed;ExampleThe PHP code is as follows OutputThis will produce the following outputGreater Than or Equal to 100
Read MoreGenerate random number from 0 – 9 in PHP?
To generate random number in PHP, use rand(). Let’s say the following is our input −$storedValue ='0123456789';And we want to display a random value from the above values.Example OutputThis will produce the following outputThe random value=3
Read MorePHP fetch a specific value that begins with a given number from a string with letters and numbers?
Let’s say the following is our string with letters and numbers −$value ="1045632245555fghjklm67535454663443gfdjkbvc9890000006777743";We ant a specific value beginning from 989 i.e.−9890000006777743ExampleFor this, use substr() along with strpos(). OutputThe actual value is=1045632245555fghjklm67535454663443gfdjkbvc9890000006777743 The filter value is=9890000006777743
Read MoreManipulate for loop to run code with specific variables only PHP?
Let’s say the following is our array −$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 OutputThis will produce the following outputThe Marks are as follows 45 67 89 68 98 57 77 60
Read MoreDisplay game is in BUY or TRY mode PHP conditions?
For such conditional evaluation, use PHP if(), else if() and else.ExampleThe PHP code is as follows OutputGAME IS IN BUY MODE
Read MorePHP Inherit the properties of non-class object?
For this, use clone along with set the property name to null.ExampleThe PHP code is as follows 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 }
Read MoreReplacing specific characters from a matched string in PHP regular expression where we don't know the number of instances of the match?\\n
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 OutputThis will produce the following output The result is= FirstName|John |LastName|Smith|SalaryProvided|2000 5000
Read MoreHow to pass reference parameters PHP?
In PHP, use &$ in function parameter to pass reference parameters.ExampleThe PHP code is as follows OutputThis will produce the following output The actual value is=900 The modified value is=1000
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