PHP

contract in solidity

/** contract is container where we write our code.
Each contract have it's own address.
if we have contract address and abi we can iteract with it.
 **/
contract MyContract {
    string public name = "Shirshak";
    //name is state variable of type string which live in blockchain. 
    /// @notice This function changes the value of the name variable
    // _newName we use _ before to tell that it is parameter 
    // string,struct and mapping are values that need to use memory
    // and after sometime it will remove from that place
    function updateName(string memory _newName) public {
         name = _newName;
    }
}

how to create smart contract in solidity

// SPDX-License-Identifier: MIT
pragma solidity >=0.4.0 <0.7.0;
contract SimpleStorage {
    uint storedData;
    function set(uint x) public {
        storedData = x;
    }
    function get() public view returns (uint) {
        return storedData;
    }
}

Solidity contract

contract ContractName {
  
}