php catch exception

1function inverso($x) {
2    if (!$x) {
3        throw new Exception('Zero division.');
4    }
5    return 1/$x;
6}
7
8try {
9    echo inverso(5) . "\n";
10    echo inverso(0) . "\n";
11} catch (Exception $e) {
12    echo 'and the error is: ',  $e->getMessage(), "\n";
13}

1
2<?php
3
4function test() {
5    try {
6        throw new Exception('foo');
7    } catch (Exception $e) {
8        return 'catch';
9    } finally {
10        return 'finally';
11    }
12}
13
14echo test();
15?>
16
17

1
2<?php
3function inverse($x) {
4    if (!$x) {
5       throw new Exception('Division durch Null.');
6    }
7    return 1/$x;
8}
9
10try {
11    echo inverse(5) . "\n";
12    echo inverse(0) . "\n";
13} catch (Exception $e) {
14    echo 'Exception abgefangen: ',  $e->getMessage(), "\n";
15}
16
17// Ausführung fortsetzen
18echo "Hallo Welt\n";
19?>
20
21

1Try catch comes under exception handeling concept where using this we control the runtime error and modify the message as we want.
2
3// function created with exception throw
4function checkdata($number){
5	if($number > 10){
6    	throw new Exception("Number is greater than 10");
7    }
8    return true;
9}
10
11// try block starts
12try{
13	checkdata(15);
14  	echo "The number is below 10";
15}
16// catch block
17catch(Exception $e){
18	echo "Message :".$e->getMessage();
19}
20
21In above code if condition is not satisfied then it will throw exception and which gets caught by catch block and show the error message. 

1try {
2}
3catch(Exception $e) {
4}

1try
2{
3    // Some code...
4}
5catch(AError | BError $e)
6{
7    // Handle exceptions
8}
9catch(Exception $e)
10{
11    // Handle the general case
12}