SourcePawn example for someone that requested it!

example.sp

// has all the main functions you will be using.
#include <sourcemod>

// initialize variables
float gF_MyNumber = 0.2;
int gI_MyNumber = 3;
any gA_MyNumber = 5; // can be everything!
char gC_MyChar = view_as<char>('a'); // casting

// void OnPluginStart()
// called when the plugin loads.
public void OnPluginStart()
{
	// syntax: void PrintToServer(const char[] format, any ...)
	PrintToServer("Our float is %.02f", gF_MyNumber);
	PrintToServer("Our integer is %d", gI_MyNumber);
	PrintToServer("Our any is %d", gA_MyNumber);
	PrintToServer("Our char is %c", gC_MyChar);

	// syntax: void PrintToChatAll(const char[] format, any ...)
	PrintToChatAll("Hello, world!");

	// syntax: void RegConsoleCmd(const char[] cmd, ConCmd callback, const char[] description="", int flags=0)
	RegConsoleCmd("sm_test_console", Command_TestConsole, "Test command!");

	// void RegAdminCmd(const char[] cmd, ConCmd callback, int adminflags, const char[] description="", const char[] group="", int flags=0)
	RegAdminCmd("sm_test_admin", Command_TestAdmin, ADMFLAG_GENERIC, "Test admin command!");
}

// void OnPluginEnd()
public void OnPluginEnd()
{
	// for(before; condition; after)
	// MaxClients is the amount of the maximum player slots so we can iterate
	for(int i = 1; i <= MaxClients; i++)
	{
		// syntax: bool IsClientConnected(int client)
		if(!IsClientConnected(i))
		{
			continue;
		}

		// syntax: bool IsClientInGame(int client)
		if(!IsClientInGame(i))
		{
			continue;
		}

		// syntax: bool IsPlayerAlive(int client)
		bool bAlive = IsPlayerAlive(i);

		// \x03 is the team color
		// \x01 returns to default
		// %N is a formatting parameter that translates a client index to name
		PrintToChat(i, "Hey \x03%N\x01! You are %s.", i, bAlive? "alive":"dead");
	}
}

// syntax: public Action FUNCTION(int client, int args)
public Action Command_TestConsole(int client, int args)
{
	// syntax: void ReplyToCommand(int client, const char[] format, any ...)
	ReplyToCommand(client, "Hey~ the <CONSOLE> command works!");

	// must be returned so we don't get 'unknown command'.
	// Plugin_Continue lets everything run as usual but stops the Action
	// Plugin_Changed applies changes to references
	// Plugin_Stop stops the game and plugin hooks
	// Plugin_Handled stops the game but not the plugin hooks
	return Plugin_Handled;
}

// syntax: public Action FUNCTION(int client, int args)
public Action Command_TestAdmin(int client, int args)
{
	// syntax: void ReplyToCommand(int client, const char[] format, any ...)
	ReplyToCommand(client, "Hey~ the <ADMIN> command works!");

	// must be returned so we don't get 'unknown command'.
	// Plugin_Continue lets everything run as usual but stops the Action
	// Plugin_Changed applies changes to references
	// Plugin_Stop stops the game and plugin hooks
	// Plugin_Handled stops the game but not the plugin hooks
	return Plugin_Handled;
}