Parse error: syntax error, unexpected T_LNUMBER_PHP教程

Parse error: syntax error, unexpected T_LNUMBER

//First of all, there is a problem with your variable assignment. If str_replace() is not performed, an error will be reported
$a = '"The female teacher tried her best to prove to the children that the importance of learning good homework. The female teacher tried her best to2222222222 The importance of good homework. The female teacher strives to prove to the children the importance of learning good homework. The female teacher strives to prove to the children the importance of learning good homework. The female teacher strives to prove to the children the importance of learning good homework. Prove it to the kids"';

Failure prompt $a=""; Error Parse error: syntax error, unexpected T_LNUMBER

Correct method

Method 1

echo str_replace(array('"',"'","‘","'"),"",$a);

Method 2

str_replace("'""","",$a)