comprimento da sequência de limite de php
if (strlen($str) > 10)
$str = substr($str, 0, 7) . '...';
Indian Gooner
if (strlen($str) > 10)
$str = substr($str, 0, 7) . '...';$firstStringCharacter = substr("hello", 0, 1);$return_string = substr("Hi i am returning first 10 characters.", 0, 10);
Output:
"Hi i am re"
<?php
echo substr('abcdef', 1); // bcdef
echo substr('abcdef', 1, 3); // bcd
echo substr('abcdef', 0, 4); // abcd
echo substr('abcdef', 0, 8); // abcdef
echo substr('abcdef', -1, 1); // f
// Accessing single characters in a string
// can also be achieved using "square brackets"
$string = 'abcdef';
echo $string[0]; // a
echo $string[3]; // d
echo $string[strlen($string)-1]; // f
?>
//substr() function returns certain bits of a string
<?php
$rest = substr("abcdef", -1); // retorna "f"
$rest = substr("abcdef", -2); // retorna "ef"
$rest = substr("abcdef", -3, 1); // retorna "d"
?>
const str = 'substr';
console.log(str.substr(1, 2)); // (1, 2): ub
console.log(str.substr(1)); // (1): ubstr
/* Percorrendo de trás para frente */
console.log(str.substr(-3, 2)); // (-3, 2): st
console.log(str.substr(-3)); // (-3): str